I Became the Younger Sister of a Regretful Obsessive Male Lead


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I’ve transmigrated into the world of the BL webtoon where I left my one and only spiteful comment.

On top of that, I became the adopted younger sister of my favorite character: the obsessive male lead who is later regretful for his actions, but still dies along with the duke in the end.

So, I became determined.

Since I transmigrated into this world, I can’t just stand by and watch my favorite character die. Additionally, I also don’t want to die. That’s why, author, I’ll need to change the tags and the ending of this webtoon slightly! From to tragedy to happy ending.

“Brother, please smile like that in front of others as well.” I said to Lucian, who doesn’t smile even a little bit in front of others.


Was that request too out of the blue?

Lucian looked at me with a peculiar expression.

“If you do that, I will give you a gift.”

I said that because I wanted to help him in any way I could.

He looked at me for a bit and hesitated before replying, “A gift… Is anything fine?”

“Of course!”

The moment I gave that answer with certainty, his expression changed right at once to that of a starving predator… Did I make a mistake?

Then, Lucian calmly replied with an expression full of expectation.

“Give yourself to me, Rachel.”

Huh? What did he say? What did he just ask for?

Associated Names
One entry per line
huhoe gwang-gong-ui yeodongsaeng-i doeeossda
후회 광공의 여동생이 되었다
Related Series
Looking For My Lost Sister (3)
She’s the Older Sister of the Obsessive Male Lead (3)
This BL Novel Is Ruined Now (3)
I Became The Servant Who Received The Crown Prince’s Obsession (3)
My Perfect Omega (2)
Daddy, I Don’t Want to Marry! (1)
Recommendation Lists
  1. FML protag
  2. Romance Novels
  3. KN Rebirth (BxG)
  4. yandere male leads
  5. Diamond List

Latest Release

Date Group Release
07/09/24 Azure Coven c171
06/26/24 Azure Coven c169
06/18/24 Azure Coven c168
06/11/24 Azure Coven c167
06/04/24 Azure Coven c166
05/28/24 Azure Coven c165
05/14/24 Azure Coven c163
04/09/24 Azure Coven c158
04/02/24 Azure Coven c157
03/26/24 Azure Coven c156
03/19/24 Azure Coven c155
03/12/24 Azure Coven c154
03/05/24 Azure Coven c153
02/27/24 Azure Coven c152
02/20/24 Azure Coven c151
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19 Reviews

Jun 20, 2021
Status: c13
Hello again, I want to write a review for this one even though I'm a quiet and silent reader.

I will give 3 and a half stars for this one because I'm still currently reading it as the current English translator group has updated this.

The plot of the story is our FL Rachel transmigrated in the world of a BL series that she has read and give a harsh comment on it. She suddenly becomes the adopted sister of the 2nd ML Lucian who live miserably because of the OGML. Rachel... more>> is a fan of Lucian so he wants to change the story plot and make her favorite character happy.

Rachel the FL

  • While reading this I think she has a cute personality.
  • She is the OG antagonist. I forgot to say lol.
  • The Duke or the ML's father loves her so much because she is the daughter of the Duke's lover. (The Duke's lover is a guy by the way lol.)
  • Because she knows the whole story she wants to help the ML to be happy. Even though the future lover of Lucian will be the OG lover or not.
  • She really loves his brother Lucian so she always makes time for her.
Lucian the ML

  • He was really handsome. The description is too detailed that I was mesmerize myself lol.
  • He wants the attention and love of his father. But his father hates him because he is the son of his mother who destroy the lovers love. As I said, his father is gay right.
  • From the start he wants to get close to the FL so he can have his father's attention but in the end. His attention was taken by Rachel and he only wants Rachel attention now more than anything.
  • Because he loves Rachel, he becomes quite obsessive as written on the title if you notice.
I really recommend this if you read the prologue of the story. You will really get hooked.

Short summary of Prologue below.


The ML don't want anyone to touch Rachel even a single bit. But she accept a dance offer from someone and ML gets mad so he throws his gloves in front of that guy. Throwing gloves here is a sign of war or something. The FL gets mad to the point of leaving that place and ML chase her or more following her.


But it will be a turn off if you hate typical obsessive character. Lucian is like that.

Who cares about that if the plot is interesting even if the update is quite few. I still look forward on this every single time.

And our FL is quite smart and understanding so I read a couple of times until new update comes.

As I said just give chance for this one. And I hope this review will give you boost to read this one. Because this one is pretty good.

PS I also recommend other stories of this translation group. They are really great!👍 <<less
36 Likes · Like Permalink | Report
Mar 05, 2021
Status: c4
So far, this series is proving to be enjoyable if sad, read. Our MC has set herself a task to help her "brother" find a happy ending. However, the first obstacle is his dad that has a rather large amount of baggage (pretty standard fare for a lot of 'historic' BL series). I am looking to see how the series progresses, especially to see if the old duke can redeem himself.
18 Likes · Like Permalink | Report
Mar 29, 2022
Status: c51
The woes of a devoted Noona trying to support her tragic bias to become more emotionally healthy this time around and reach a happier ending with his lover. And well, you read the title so...

So far so good, it's cute. I had my doubts at the beginning, it's the typical transmigrated into a difficult Cannon fodder character that becomes the protagonist role by treating the tragic characers like human beings. But it's pretty ok for the genre.

The pace is good. My favorite part in transmigrating stories is the balance of... more>> expanding worlbuilding over the "original"story in a way that seems like they belong. Until now the novel it's been dealing with the background of the original storyline and so far its interesting.

Main lads are cool. FL is cute and sensible. Not a genius or a scheemer, she is genuinely just a nice person. Her primary concern with the plot was a happier ending for the ML and surviving the plot. Like yeah, I can see why everyone grows to like her for being her. She is oblivious to ML's favoritism and change of feelings, but tbf she's blindsided by the original novel being BL.

ML. I'm super picky with obsessive/possessive characters but so far he is good. Tragic past, and hopefully not so dark yandere future *fingers crossed*.

The rest of the recurring characters are ok, not very deep but they pass. The Duke was a surprise.

He can even be an overprotective and doting father... just not to his son. He is one of the characters more deeply ruled by his personal tragedies, perpetuatig a the cycle of traumas.

I'm curious how the author is going to resolve that plotline, it's one of the interesting ones.

And for the people who is wary of the adopted siblings part, if it helps they did not really grow up together. And honestly the time they spend together growing up is not much, meaningful but not long. They do call each other as siblings but in her innermot she calls him her bias who she is happy to support and see from up close. And he is charmed because this bubbly girl his cold father dotes upon is the first person to show him support and affection. His feelings start to change after

a rather long separation.


It's an enjoyable read. Translation is pretty good. Book has much cuteness, some fun, some sad, and some omgsohawt! <<less
15 Likes · Like Permalink | Report
Jul 16, 2022
Status: c67
Pretty good. Honestly, not too much in the way of character growth-- maybe for the ML? But it is entertaining and fun.

I admit while reading I felt a little tired of the trope used where the ML doesn't communicate his feelings at all and is instead super handy. Honestly, this works most of the time but... Not when the other person is your legal sibling.

His weird self pity party about how his "sister" doesn't realize he wants to f*ck her made me eyeroll. Dude, use your big boy words omg.

Aside... more>> from that tho, there's lots of pretty boy characters and some interesting mysteries related to the nature of the world she transmigrated into which we're not elaborated in the original novel.

Lucien is good as a love interest so I'm rooting for him, but I actually like Damien a lot too! I don't think he has feelings beyond loyalty but he's just... Good.

MC's personality didn't super stand out to me but it wasn't annoying either. Her entire personality is basically "avid fan", "I miss Korean food", and "orphan trauma".

But she is very good at taking care of herself! When she was kidnapped, she saved herself. The men couldn't rescue her nearly as easily if she didn't. She has a spine and won't let herself be pushed around.

Overall, not a bad way to spend time! <<less
14 Likes · Like Permalink | Report
Apr 20, 2021
Status: v1c9
The novel is very well written and the author explain the character suffering & motivation in such short span of time. I hope Lucian can really change his path to become an obsessive lead and Rachel can indeed find happiness with him in this alternative world. Lucian reminds me of Heathcliff from Wuthering Heights and the passion he has for Rachel has that angst and balance of romance. I really dont like Lucian's father for venting his unrequited hatred on his son for looking like his father and compensated his... more>> unrequited love of his first love by being a father to Rachel. He is seriously psychotic. Thank you to the translator for doing a great job. I wish to read more of this author work. <<less
11 Likes · Like Permalink | Report
Oct 30, 2022
Status: c90
Actually Rate this for 4.5

I hope there will be an update soon. I would advise anyone who is considering reading this to do so, my friend. You'll like Lucian if you enjoy characters with compulsive tendencies and dubious morals. His desire to monopolize Rachel also drew me in since I adore characters with a tinge of madness. The female lead's being clueless beside a man oozing with a yandere vibe is adorable

... more>>


Well, it's an update and I love that he is starting to show the type of obsession I like. Also, it's starting to get spicy so I'm looking forward to it.

7 Likes · Like Permalink | Report
Mar 21, 2021
Status: c6
A very intriguing and well written piece. The way the author describes the characters and their actions makes it an absolute delight to read. The translator did a stellar job translating the novel. I look forward to reading more of this novel.
7 Likes · Like Permalink | Report
Jul 31, 2023
Status: c108
The treatment towards Oscar and Damian is deplorable by both ML and FL since she’s basically a bystander at best.

There’s a lot of unused potential and plenty of plot holes.

FL is pretty much useless throughout the novel. All she can do apparently is sort out letters by importance and apparently that takes her days on end. The novel states she’s been educated and whatnot during her stay at the house by the beach but she disregards even basic manners or she has a huge lack of knowledge of the empire’s... more>> history and so forth. At some point the novel mainly focuses on the ML forcing FL to be 24:7 with him but that’s pretty much it. No character depth at all. Frustrating really...

I almost forgot. Their secret knocking code drove me crazy. I thought it’s childish at first but when the author wrote it again and again and again it became super annoying. <<less
6 Likes · Like Permalink | Report
Jan 31, 2023
Status: Completed
I actually didn't mind leads as adopted siblings... bc they only spent childhood 2yrs together and separated for 7yrs (until adulthood).

ML (Lucian) was a typical yandere who's only soft to his beloved and FL (Rachel) who saved him from his destructive path. There's just times that they lacked communications in some scenes 😅 In later chaps, you can see symptoms of co-dependency in their relationship due to their past traumas.

I enjoyed reading this novel but author seemed to focus more on "leads' dog foods" scenes than the plot's substance... more>> in later chaps. Making leads unable to standout (even with power) while other characters became bypassers. Also, the plot was unforgettable and full of holes....



* "Possessors" arc was anticlimatic.

*There are so many "possessed" characters finely introduced but wasted.

* Saintess power of FL was not maximize in the story and seemed useless.

* FL's real identity and saintess' history were not fully explained.

* Plot of Enzo and Saintess (FL's other life?) seemed to be more interesting tho.

* I don't like ML's treatment to Damian and Oscar. Also, FL's negligent to their feelings & sometimes treat them more as pet than being who got feelings.

* Only good character development in the story were Lucian's parents. Most characters felt like cardboard.

5 Likes · Like Permalink | Report
Nov 19, 2021
Status: c33
i cannot believe how good this is omg

ML is touchstarved and in dire need of love, which the FL provides so it really doesn’t take long for him to get attached so the pacing is quite nice and there are a few time skips so it really doesn’t leave you waiting on the romance hehe

tbh everyone in this story is so nice to the FL (except few the obvious villains) so it’s a really adorable read and the ML is the absolute best wow

if you like yk cutesy possessive yanderes... more>> with the sweetest ever FL and cute things like yearning and aching desire and going kinda mad and something that really pulls ur heartstrings then this is really really good :)

translation is really great and easy to understand too!

only regret is waiting a whole week for a chapter :’) <<less
4 Likes · Like Permalink | Report
Nov 11, 2021
Status: c32
This is really good, would totally recommend this. When I saw the promo manhwa of this I was instantly hooked. Rachel (the fl) doesnt avoid Lucian (the ml) its nothing like other cliche novels that when they reincarnated they avoid the characters to either prevent death or causing the story to change. Instead she's desperate to change his "brother's" personality, she's doing that to avoid the bad ending, and let the seme and uke live happily. Don't worry tho they're not blood related Rachel is just adopted, you may think... more>> that its kinda wrong that one of them developed feelings for the other person, and that if even if they're not blood related they still grew up as siblings. So if you don't like that kind of development I say this is not your cup of tea. Lucian is obsessive, just as the story describes him, but he respects her privacy and doesnt go to overboard, he already has feelings for Rachel, but Rachel doesnt realize it yet. Their whole childhood is really cute! I suggest you read the chapters where both of them are really wholesome. Rachel is really funny to, she's like minded, and uses commen sense well. On the other hand Lucian's father was really strict but changes as the story develops, don't worry tho he's like that for a reason, there's already a backstory of him but I dont wanna spoil it. The latest chapters appears to be really short and this takes time to update, but its no problem for me (๑•᎑< ๑) ♡ <<less
4 Likes · Like Permalink | Report
May 08, 2024
Status: c140
It started out interesting, and I thought the tension, survival, and balancing act in FL/Rachel's life was interesting. But by chapter 140, nothing is really getting resolved and the story got exhausting to read. Abandoning as I've really lost interest in figuring out the details to the big unanswered questions, and Rachel seems like she's devolved as a character. Really disappointing how any time Rachel does something on her own, she passes out for days at a time.
3 Likes · Like Permalink | Report
Feb 16, 2024
Status: c99
There’s a trend here, where people who have read the first few chapters enjoyed the series but the people who read further down are less enthusiastic

It feels way too drawn out by chapter 99 and I don’t see the value in continuing. It’s a 2.5, maybe 3 but not a 4.
I love possessive male leads but it feels like it took too long for him to act
2 Likes · Like Permalink | Report
Jan 06, 2022
Status: c40
So far I love the story. Just frustrated of the ML father!

FL is somehow very hilarious, she just too focus on fangirling & shipping 😆

ML, get your moves faster!!

Can’t wait for next update!! Thanks for the hardwork!!
2 Likes · Like Permalink | Report
Sep 07, 2021
Status: --
As I have read the current update, the story plot is very intriguing, specially when the author describes the characters, their sufferings and they are slowly overcoming the said challenge. Overall, the book is great and interesting.

Edit: Sorry, I accidentally pressed two stars. I am rating this novel to have 5 stars.
2 Likes · Like Permalink | Report
Sep 01, 2021
Status: c22
I'm quite enjoying the story line, though the premised/original story line was thought-out to be a BL story, which isn't my cup-of-tea, as I read further, it is becoming a reverse harem instead. 🤔 I'll try to keep this novel on tab.

Thanks for translating this novel 🥰
2 Likes · Like Permalink | Report
Aug 27, 2021
Status: c3
I just read this rn and yet I'm so excited to know what the future holds (Ofc, I know it alrdy cuz they alrdy spoiled/spilled it out in the prologue but still...) Anyways I'm so excited. Hope that this group/website--

they do mass realease some other time.
2 Likes · Like Permalink | Report
Jul 05, 2021
Status: c16
To be honest I’m loving this story so far and I can’t wait to see more chapters. The translation is great and easy to understand which makes the reading experience great!
2 Likes · Like Permalink | Report
Sep 03, 2023
Status: c126
I love everything raging from the Novel to Manhwa but not a FL's personality after the time skip. Why the hell she kept denying a ML's obvious love to her????????????? At first, she didnt talk abt her past or traumas that much, but after 7 yrs apart, shes being so unsecured & over thinking despite ML's explainations + comforts which drives me nuts. And I'm absolutely in love w ML's Yandere side + dirty, possessive thoughts + actions towards FL. Anyway, it was a blast to read this and thanks... more>> for the smooth translation!! <<less
1 Likes · Like Permalink | Report
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