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I Accidentally Seduced the Male Lead’s Younger Brother
Type
Web Novel (KR)
Genre
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Rating(3.5 / 5.0, 93 votes)
5    41% (38 votes)
4    13% (12 votes)
3    15% (14 votes)
2    14% (13 votes)
1    17% (16 votes)
Language
Support Book (#ad)
Author(s)
One entry per line
Artist(s)
One entry per line
Year
Example: 2012
2021
Status in COO
Status in Country of Origin. One entry per line
126 Chapters (Completed):
⊱ Prologue
⊱ 120 Main Story
⊱ 5 Side Stories
Licensed
No
Completely Translated
Original Publisher
One entry per line
English Publisher
One entry per line
N/A
Release Frequency
Every 19.7 Day(s)
Activity Stats
[Graph]
Weekly Rank: #1352
Monthly Rank: #2340
All Time Rank: #5269
Reading List
[Graph]
On 2678 Reading Lists
Monthly Rank: #25388
All Time Rank: #3637

Description

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She possessed the mistress of the male lead in an R19 novel.

In the original novel, the male lead was a tr*sh who abandoned her after getting her pregnant, saying that he belatedly realized that he loved the heroine.

Fortunately, it was still before the original work started.

I decided to scrap this sh*t by myself.

***

“No, I don’t want to.”

I flatly rejected Killian’s offer to have an affair with him. When he asked me why, I smiled brightly and answered.

“The Young Master is not my taste. If I must say, your younger brother is much preferable.”

“What? You prefer my younger brother?”

Yeah. Not you, but your brother.

***

Unlike the original, I firmly set up an iron wall, took care of Lexion, the younger brother who was ab*sed by his older sibling, and protected the original female lead who has low-esteem against that shitty male lead.

And now that I’ve already done what I have to do, I’m off to go.

But a few years later,

Lexion, who pushed his older brother and sat in the Duke’s seat, came back to me as a beast with a decadent beauty.

On top of that, he’s even holding the engagement document that I signed as a joke during childhood.

“I’ve never forgotten you for a moment. Please marry me, noona.”

No, wasn’t that just for playing house?

Everytime I refuse his marriage proposal, he will gently hug me around my waist, and ask in such a cold voice.

“Did your taste change while I was away?”

Lexion’s eyes were full of life as he asked.

It’s as if when he found out who my type was, he’ll kill it right away.

Associated Names
One entry per line
Escape the Original Male Lead! (Official Manhwa)
IASMLYB
실수로 남주의 동생을 꼬셔버렸다
Related Series
N/A
Recommendations
The Villain Is Obsessed With His Fake Wife (1)
I’m the Main Character’s Child (1)
Recommendation Lists
  1. Fiction Addiction.
  2. young protagonist
  3. [Completed KR novels]
  4. Baby Fl
  5. Child Protagonists

Latest Release

Date Group Release
12/31/24 Moonlight Novels c120
12/22/24 Moonlight Novels c119
12/22/24 Moonlight Novels c118
12/19/24 Moonlight Novels c117
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11/23/24 Moonlight Novels c113
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09/23/24 Moonlight Novels c111
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08/21/24 Moonlight Novels c106
123…9
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Write a Review
10 Reviews sorted by


znukhsoc
New znukhsoc rated it
June 2, 2025
Status: Completed
Quite average but enjoyable rofan.

ML was the best: He is sweet, expressive, thoughtful, and kind only around FL. He isn't an esshole to the others either. He is very respectful. He isn't ashamed to bow down when he needs to and is ready to do anything, I mean ANYTHING for the FL. Also, ML is not a yandere. I REPEAT. ML is NOT a yandere. The tags are false. He is the softest boy.

FL is your average overpowered main character. I could understand her reasoning, so she didn't annoy me... more>> much. Small note: There was the right amount of FL-harming/worrywart ML in this novel.

However, after a while...

Spoiler

The author made it all so easy for the main characters, to the point that nothing felt earned. In the end, every single victory was gained easily. Whatever she wished or wanted was handed to her. Every achievement felt effortless. A confict arrives and it's solved in 3 chapters MAX. Many of them were dealt with in the same chapter.

Killian's ending was underwhelming. ML didn't even want revenge after all that. Just left him to FL for "fair judgment".

[collapse]

Especially the last 20 chapters were extremely dry, and in the last 10 chapters, the story basically became: "... and everyone clapped."

I loved the main couple's dynamic but sadly, I can't give this more than 2 stars. <<less
0 Likes · Like Permalink | Report
Sapling001
Sapling001 rated it
September 4, 2022
Status: --
I'm liking the story so far, the MC in my opinion is take-action kinda girl. As soon has she seen the OGML abusing his lil brother she immediately got between them and stopped him from hitting his lil bro. Then she started making plane to separate the tr*sh OGML and OGFL because she know OGML is not good enough for OGFL.

OGFL seems nice and sweet so far, and said that she would like to be friends with MC when they had class together. (Oh and OGML is tr*sh towards OGFL,... more>> he tried to force himself on her by corning her and tried to kiss eveb though she said no to him repeating, so our awesome MC steps in and stopped him)

The Duke seems meh, I didn't like when he dismissed MC when she brought to his attention the absue happening. OGML is abusing his lil Bro the ML. He said that their boys and brothers and that it's natural for them to fight. (He's a very cold father to his sons)

There's more but I'm lazy to write more. Anyway the story os good so far to me <<less
16 Likes · Like Permalink | Report
Skite
Skite rated it
May 9, 2023
Status: c20
It very quickly jumps genres, which I always find annoying AF.

I strongly suspect the author had intended this to be the R19 story from the description, but 3-4 chapters in decided "eh, I don't want to" and abandoned the original plan and outlines to go in a completely different direction.

It initially presents itself as a typical romance-with-extra-info, where our main character, a young, newly orphaned, commoner girl is on her way to her new life as a ward for by the Duke her father sacrificed his life for. Of course,... more>> the night before she has a dream and remembers her past life where she read the book of her current one.

She is now aware that her newly-met childhood companion, the lord's older son, is someone she grows up to eventually take as a lover, but who would then abandon her after getting her pregnant with an illegitimate child and loses out on his inheritance to his better skilled younger brother.

She wisely decides this guy is not worth her time.

Unfortunately, the writing also decides to not even bother treating her like the 13 year old orphan susceptible to falling for this boy in the first place. Despite having been born in this world and growing up there until now, gone are her attachments and feelings for her newly-dead, hero dad, her immersion in the current world's culture, and her very young age. It's lazy writing, and they didn't even do the laziest option of making her a transmigrator to explain why she is completely different. There is zero attempt at emotional or psychological nuance, and no exploration of why she was so willing to be this boy's mistress (whether that was due to genuine love, lack of options, force, etc.)

To make extra sure we, the idiot audience, are not confused, they also make this boy flat out abusive, which was not in the original novel she dreamed.

Then they get even lazier and jump genres. Suddenly, rather than a growing up, unintended-obsessive romance fic, we're stuck in a cross between a magical world fic and an entrepreneurial money maker story. Also not in the original novel she dreamed. The MC is Mary Sue to the max as she is double-take gorgeous beyond belief, discovers she is immensely magical, is the only Spirit user in hundreds/thousands of years with devoted, hyper powered minions, and wealthy over night for inventing magical Midol

(because powerful institutions are so known for setting up production lines for drugs invented by 13 year olds after two weeks of work, and despite being a super super common weed which works basically immediately, no one has any idea it's good for pain relief /s)

It tries to be all the genres at once, and manages to be mediocre at best at all of them. Should have stuck to one.

We might have forgiven it for all of that if it delivered on the obsessive little brother lover we all showed up for, but it flops there, too.

Read if you're feeling lazy and just want to watch someone god mod their way through all scenarios <<less
15 Likes · Like Permalink | Report
ScotlandForsythe
ScotlandForsythe rated it
May 25, 2023
Status: --
I wanted an r19 novel with cute obsessive novel ml

I got magical mary sue MC business novel with no heavy smut to be seen and like mediocre obsessiveness TT (yes I wrote that)

That's all I have to say. I wouldn't mind it if I'd gotten what I'd been told I'd get lol
9 Likes · Like Permalink | Report
Peridot_Granger
Peridot_Granger rated it
November 6, 2022
Status: c36
This book is an easy read and a good way to pass the time. The FL is powerful, though she is not as badass as I expected her to be, being a wizard and all. The spirit hasn't been well-emphasized so far, but perhaps that's because this web novel has only 36 chapters so far (looking forward to an update). I wish the ML would be more obsessive in the future chapters, though that's just my preference.

Additionally, I want to note that the translator did a fantastic job on this.... more>> I will eagerly wait for future updates. <<less
8 Likes · Like Permalink | Report
chopper forever
chopper forever rated it
May 5, 2023
Status: c63
It’s very nice and female lead knows how to defend herself well. The only problem to me is that this was supposed to be a R19 novel but we at chp 63
Spoiler

and nothing R19 has happened. The FL and ML are contract lovers for 3months to see if this works out or not. The most they had was a hug and that’s all. Their love forecast is a dry as f*ck. ML is to scared and worried to keep his innocent act to the FL that he does not initiate anything. FL at this point likes his face and that’s all.

[collapse]
7 Likes · Like Permalink | Report
R34der
R34der rated it
August 17, 2023
Status: c80
It's nice, the romance may not develop well, but it's cute when you finally see them in love. They didn't make the FL some weakling that needs protection and they also made sure that it wouldn't take too long for a confession. Whilst it's sad that their path is filled with death flags, it would be nice if we could see a happily ever after for the two.
3 Likes · Like Permalink | Report
Jhon sing
Jhon sing rated it
September 16, 2022
Status: c22
Very cute and heartwarming story FL that want to change the novel settings is very hardly found
2 Likes · Like Permalink | Report
nikkerbokker rated it
April 24, 2025
Status: Completed
There are parts that are cute. I mean the story starts out during their childhood. The kid ML is adorable. There are tiny, cute versions of animals that are spirits. Adorable.

However, I can't get over the holes in the story. Why is the OG ML ever considered a male lead? Bc the OG story is a "regret" story? Just call him a villain.

... more>>
Spoiler

also, the MC kinda goes hard on getting him kicked out of the house and painting him to be the villain of the now story. Like he was a kid during the beginning too. I feel like you could have tried to make him like a better person. People deserve second chances, especially kids. But nah. She just spends years ignoring him and then goads him into getting angry to get him kicked out. I felt a little bad.

[collapse]

The story didn't really address the MLs growth during his absence. They just say what he can do after he returns with no background.

Lastly, by the end you realize the MC is kinda a Mary Sue.

Spoiler

she doesn't actually come across something that ever gives her trouble. If she ever can't figure something out, her spirits or someone else figures it out for her in the very next scene. Everything is just so convenient for her.

[collapse]
<<less
1 Likes · Like Permalink | Report
Karoll488
Karoll488 rated it
April 23, 2024
Status: -~-
A story that changes after 20 chapters, the author did not know how to maintain the plot in one or a few genres as he should, it seems that the author did not know how to make the story and only added things from other stories but did not know how to maintain them, it seems that the The protagonist of the original changes from time to time, at first he is the duke's first-born son, then he is the younger brother and later a marquis from I don't know... more>> where, the story was not planned and was only written as time goes by, unlike of other good stories that show that the story was thought out from beginning to end, even so it is a story that you can read if you want to get lost and have a quiet time without thinking too much about what you read <<less
1 Likes · Like Permalink | Report
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