I’m a Phantom Thief But I Faked A Marriage With An Investigator

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“Everything that sparkles is mine.”

It’s been 10 years since I took on the role of Gemma, a jewel-stealing thief in a game with extreme difficulty.

Today, I was doing the stealing that the system told me to do to avoid a bad ending…

“Gotcha.”

“Huh?”

I was caught by Inspector Raven Hunt, the investigator who was persistently pursuing me.

[Enter the bad ending route.]

‘System! Give me one more chance!’

However, it was not the system that gave me a chance to live, but the enemy.

“You choose. Prison or marriage?”

* * *

My fake marriage to the man who arrested me…

“We’re divorcing as soon as we get that damn ruby back.”

“I’m already looking forward to that day.”

We are just together to find the missing ruby…

“Our child. The responsibility is mine and yours together. So don’t think about running away again.”

The man who seemed to be disgusted by the idea of having fur on him raised my cat with me.

“The only jewel I want is my wife Gemma.”

He began to say things that made my heart flutter.

“Raven, if you do this, I will report you.”

“Marriage registration.”

I… Maybe I didn’t steal the jewels I was told to steal, but I stole this man’s heart?

Associated Names
One entry per line
괴도인데 수사관과 위장결혼해 버렸다
Related Series
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Recommendations
Nighttime Encounters (3)
Thought It Was ‘The End’, Only to Return to a Changed Genre (1)
Recommendation Lists
  1. Mined GOLD
  2. UNCLASSIFIED
  3. All time favourites!!
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  5. ROFAN stories with more adventure

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15 Reviews sorted by


Bluebells in Bloom
Bluebells in Bloom rated it
July 12, 2024
Status: Completed
Hello, this is Ame, the translator of this fun and hilarious novel ^^ For this, I mostly read as I translate, and I must say that my expectations were totally different from the actual plot. Still, I love every moment.

What I expected:

  • Many cat and mouse chases between detective ML and phantom thief FL
  • FL having to hide her identity during her marriage
What I got:

  • ML and FL going into the marriage fully knowing FL is phantom thief (thanks, judicial deal)
  • ML is the one with a more complex past and hidden identity
  • A lot of cute banter and bickering (even after they confirm their love for each other)
  • Very very hilarious, even campy in the 2nd half
  • No filler arcs, every arc is somewhat all linked to the overarching plot and climax!
One of my... more>> favourite scenes:

Spoiler

Curiosity got the better of me, and I asked something that had been on my mind for a while.

“Raven.”

“Yes?”

“If the me now and the me from the past were two different people, and they both confessed their feelings for you, who would you choose?”

Raven’s brows furrowed, making him look as sour as the lemons he was squeezing.

“This is the most pointless question I’ve ever heard in my life.”

Then he turned the question back on me.

“What about you?”

“I asked first.”

Raven leaned in and whispered in my ear,

“My answer is... Strawberry Head can date the Mad Dog of Hell, and the Inspector Raven Hunt can date Thief Crow.”

A wise answer to a foolish question.

It might seem as meaningless as my question, but if you think about it, it’s actually quite profound.

The 20-year-old me with the 20-year-old Raven, and the 30-year-old me with the 30-year-old Raven.

The love we had in our twenties was different from the love we have now in our thirties.

Back then, it was certainly love, but it felt reckless and blinding, like a precarious first love.

Now, our love has deep roots and is strong, unshaken by any storm.

We separated and found our own places, becoming independent adults, and then reunited.

Perhaps that’s why we could love each other for a long time.

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Now I need to add five cats and a lemon tree to my dream of a happy family... <<less
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ChillSir
ChillSir rated it
November 1, 2023
Status: c21
A fun read, author actually made use of the Clark Kent disguise method and its hilariously well done.

... more>>
Spoiler

MC is a phantom thief who by daytime works as an assistant in the officer of the police that are chasing her. And not a soul suspects anything because the dorky girl obviously cant be the femme fatale thief skippin around town. She happily plays sneaky tricks to ensure her ongoing freedom

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But even more surprising, the male lead actually has brains, he actually does great work as a detective which serves to give MC all kinds of fun trouble and cold sweat. In spite of her actually being good at what she does.

At this point I reached a big thing happened and I am curious as to how it will play out😁 <<less
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Nurahahaha
Nurahahaha rated it
November 22, 2023
Status: c185
I finished reading this novel in, I think 7 days?

It's enjoyable despite all the flaws.

The main characters interaction is fine, romance is good, sometime cheesy sometime plain sweet, but I mean, that's love, innit?

... more>> There's no love rivalry or that kinda crap.

Female lead often felt pathetic, but I can sympathise with her. She's wise, but sometimes dumb. She's also sympathetic and kind-hearted. She's a bit arrogant and sometime annoying, but it's within her "Gemma" character design (I mean, the game character)

Male lead often felt pathetic, too, unfortunately I couldn't sympathise with him. Like, he often blamed himself for something he's not guilty of, and he's quite harsh towards other, probably because he is also hard towards himself. He hates criminal as much as he hates himself, but he doesn't hate criminals who can be reformed.

He is quite cold-blooded at times, but ultimately good. He can readily kill armed criminals without remorse, though, he would never hurt non-violent criminals (he didn't even punched or retaliate against Gemma when he got kicked by her). He's also righteous, not self-righteous, and would often put himself in danger in pursuit of justice.

The conflict, tho, isn't very good. I half-expected this to have a mystery genre or police drama sprinkled in, but there's neither mystery nor police drama. It's a damn shame....

Light spoiler about ending:

Spoiler

The ending arc and the ending itself isn't very satisfying, but I can't complain much. I just hoped for the world to be another world, but in the end, it's really just a game....

MC decided to live within the game, which is fine. However, I hoped for, at least, an explanation about what really happened.

Unfortunately, here's zero explanation of what happens to her in real life. Like, real zero explanation. Even how she got her consciousness inside the game wasn't explained properly. What if she died IRL, what if she died in game, what if...? There's a lot of what ifs.

All in all, it's not a very good ending. Happy ending, yeah, but a sloppy one.

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zephyronthewind
zephyronthewind rated it
October 24, 2023
Status: c18
Absolutely loving this story, whenever I check my updates I scan to see if this one is there so I can read it first!

It's an Urban Period Fantasy story that also uses the Isekai framing of being s**ked into a video game. You'd think thats too much going on at once, but the world building flows so naturally it's easy to grasp. I love the personality of the Female Lead, a woman who just wants to have an easy, normal life with her cats but gets suckered into acting like... more>> a femme fatal thief. Her choice in a day job is brilliant, but also ridiculous enough it makes you realize she's not as normal as she thinks she is.

The Male Lead hasn't been overly featured yet, but his professionalism and sharp thinking is something I immensely enjoy already.

If you enjoy Isekai and Villainess romances, but have been getting tired of the Medieval Fantasy setting, this is a perfect read. <<less
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GenericUser123
GenericUser123 rated it
October 26, 2023
Status: c19
This has been a great read so far. 19 chapters in and I'm excited to see where this goes.

A few small things which stand out to me so far:

  1. The setting is unique for this type of story, think the lighted-hearted and larger-than-life elements of Lupin crossed with a Phantom-Thiefy Isekai story and light game mechanics sprinkled on top
  2. The protagonist has the odds against her, but she's cunning and a bit of a planner
  3. The ML is a brilliant detective. There is a moment in C13 where he shows deductive powers on par with some of the best fictional detectives.
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Starlight97
Starlight97 rated it
January 18, 2024
Status: c62
The novel is nice refreshing to read.

FL is smart, cute and sometimes cunning. I find her inner monologue funny. She uses situation for her advantage as its a given as she sees it as a game but she's very naive to emotions I would say. Despite playing everything as a game she's kind-hearted and warm. The game character gemma adds charm of arrogance in her.

ML is handsome, cute, rich straightforward and very down to his self claimed morals. He never wanted to hurt any criminals who doesn't hurt others or... more>> unharmed. He's not a very powered character but ruthless to actual criminals and he's very quick witted. I like him for his witty nature.

Spoiler

ML is the lost son of hunt family the youngest master.

He was kidnapped by some mafia gang and there he was bullied and harrased and forced to kill others. He was asked to kill dorris hunt as he doesn't know he was his son

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Story is nice somewhat giving sherlock vibes in start but that's it then it takes a complete rofan turn.

I like the author use of DC characters naming sense and overall European ambience vibes. <<less
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MusicFromMiles
MusicFromMiles rated it
November 13, 2023
Status: c28
Damn this is one of the most engaging MC and ML development I've ever read here in novel update. They have such a fun dynamic, whatever your first thought was when you saw the cover, it's exactly that and more. My only regret is that it doesn't have more translated chapters.
7 Likes · Like Permalink | Report
sojuu_prettyaf
sojuu_prettyaf
March 3, 2025
Status: c103
read this fun and hilarious novel in the past and left it to marinate (i read up to 100+ chapters) but now I can't open it : (

whenever I open the chapter, it just show a blue background and says “A bright idea, coming soon” and I know that the translator updated the novel just recently on february 2025, and im devastated not being able to read the novel again 😭

can someone tell me what to do????? I really enjoyed the novel since the translation was very good and the... more>> story's settings was very unique. <<less
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Sin3ster
Sin3ster rated it
September 12, 2024
Status: c124
Ame. I don't know if you see this but I have no doubt eventually you will.

Thank you for translating this novel. Seriously I think after reading a bunch if translated knovels, reading your translation si always so refreshing and cute. I come back from school and read it and I am always so impatient and excited for the next chapter. Often I curse myself "wow why did I start thus insanely great novel when it's ongoing, hurry up and be completed!"

This is really a cute action filled novel. Easy to... more>> visualize the scenes and the love between the Police investigator and phantom thief >////< okay mister raven hunt sir ~~~ really so charming. Gemma too, just as charismatic!

Wow really great novel. As simple as I've said it, I don't think I can ever find a statement that can really express my likeness towards this novel. Kudos to ame and kudos to the author! &Gt;_< <<less
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plsgibfood
plsgibfood rated it
March 6, 2024
Status: c27
I still am obsessed with kaito kid so this made me soooo happy seeing a story about a phantom thief. So far its okay, it hurt me since she got caught so quick because I expected a thief who is un-catchable yaknow? I guess I was expecting too much. Dont blame me, blame Kaito Kuroba 😔😔
4 Likes · Like Permalink | Report
Cennepal
Cennepal rated it
February 28, 2024
Status: c140
It's fine? The idea is very fun and the dynamic of the FL and ML are enjoyable, however one thing bugs me a lot. Even though I really like Gemma's personality, there hasn't been anything substantial to prove her ability. Yes, off screen she's a super famous thief, but on screen she just feels mostly like a bumbling idiot. I think she deserves more care than currently. From the first few chapters to now she never gets a W. I guess what I want to say is that I love... more>> the character, but I was hugely disappointed seeing the typical 'ML walks up, FL tamed, ret*rded and submissive from now on' switch being flipped. Anyway, can't wait to see what happens next. <<less
3 Likes · Like Permalink | Report
Cactiii
Cactiii rated it
March 11, 2025
Status: c182
I really liked the theme for this story and I think for the most part that it was well written, the main characters have a good dynamic with each other and for the most part I enjoyed the story.

The ending I did not really like. It's not a terrible ending, but it just really wasn't my preference and it kind of hit the notes of what of the story I did not like. Although I once again want to say that the ending isn't bad, I'm just nitpicking.

... more>>
Spoiler

So, the final arc is this big thing of them trying to track down the ruby. While this occurred before this arc had a lot of forced plot lines occurring. The main couple gets stranded but luckily the system unlocked the "survival system" that allowed her to in a very short time level up enough to make fracture healing medicine, build them a house, and find food. Then just by pure coincidence they camped at a place where the rare birds molt giving her plenty of feathers to make some super broken flight power armor suits. Sure, whatever. It feels a bit plot armory with how they just happened to run into this many birds and stuff but its not a big deal.

Then, once they escape instead of completing their mission and retrieving the jewel when they have the chance instead they simply track the ones carrying the jewel to find their base. Unless I somehow missed something they did this on their own imitative without anything like the government ordering them to do it. So, that entire action sequence just feels really s*upid.

Then the people with the jewel suddenly go to an underwater base, where the final villain is the cat cult lady. There the cat lady suddenly uses a random bs item to steal all of the mc's items and reveals that she was actually a game developer that had a grudge so she set it up so the servers would have issues at peak playtime. This somehow lead to her and a bunch of players being trapped in the game including our MC. Crazy cat lady then reveals that she has been kidnapping all of the players and all of this evil stuff, and I mean... It just felt like such a bad twist if I can even call it that.

Reading it felt like being thrown into a washing machine where it suddenly feels like I'm reading a different book. The main couple advertised as smart are suddenly making bad choices, we suddenly get a bunch of stuff about the evil mastermind who monologs all of her evilness... I feel like the author really wanted a big final bang for the series but this just felt bad to read for me.

So much in this final arc feels like that... We had so much set up on this secretive group and then the evil organization flashes a gun and they are gone from the story. The trials were built up to but they literally just opened since they were faithful to each other, one bad riddle, and then they brute forced the rest of them and it didn't even lead to anything.

I just... Idk, the ending felt lacking to me. I think it would have been a lot better if we had some bullsh*t like them realizing that they love each other through the trails. I'm not good enough to explain why, but this entire plot just felt bad to read and even though it should be the point in the book where all the buildup gets paid off I'm instead annoyed by the whole thing and skimming chapters.

Again, I'll end this with the book not being bad. The book I would say is good, but at least for me the final arc soured the series for me and I'll just imagine it had a different ending. I'll also add that this is just my opinion, and so I might just be really critical to something that other people loved and you will enjoy the ending.

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Mariria33
Mariria33 rated it
January 28, 2025
Status: c185
Actually 4 stars but I can't change it anymore.

The novel started off very promising and was quite interesting, but as it progressed, the tension factor lost its momentum and became a bit boring. Overall, it was a well-executed story.
1 Likes · Like Permalink | Report
Bannah98
Bannah98 rated it
October 3, 2024
Status: c134
This novel is so unique and funny! I love it so much, it’s my favorite knovel that I’ve read. And the translation is great too! Ame is doing a great job 😊
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japanesewolf
japanesewolf rated it
June 5, 2024
Status: c90
The beginning of this story is cute, but it seems to have taken a sharp left turn into ridiculousness once it focuses on the Male lead's family drama. I hope it can course correct because I really enjoyed the interaction between the leads.

With these types of stories, there is always some suspension of disbelief, but it's taking it too far. The mysterious phantom thief gets caught at the beginning of the story I'm fine with because it is necessary for the plot; however, a special item that has a ridiculous... more>> recipe that only the female lead can produce using the system being copied by someone who doesn't have access to the system is too far for my suspension of disbelief. <<less
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