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UNEXPECTED OBSESSION- Sanzu Haruchiyo X OC Story

UNEXPECTED OBSESSION- Sanzu Haruchiyo X OC Story

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WpMetadataReadMatureOngoing11h 16m
WpMetadataNoticeLast published Thu, Apr 23, 2026
WpInfo
Fanfic
Tokyo Revengers
Original Character (OC)
Anime and Manga
Fantasy
A Bonten Fanfiction Sierra Ito doesn't believe in love-until she meets Haruchiyo Sanzu, Bonten's deranged right-hand man. Cold and ruthless, she built her empire, but him? He ignites something dangerous. She denies it. Fights it. But love in their world is a death sentence. "What would you do if nothing held you back?" The first time she saw Sanzu, he was laughing-unhinged, wild, eyes burning like a predator's. She told herself it was disgust. (It wasn't.) His Obsession: Sanzu's used to women who play with fire. Most die. But Sierra? She breathes it. When he presses a gun to her head, she smiles. When he does it again, she laughs. By the third time, he's the one chasing her-and that pisses him off. No one gets under his skin. No one matters. Yet the way she looks at him-like she sees every broken part of him-makes him want to ruin her... or keep her. (He hasn't decided.) Themes & Warnings: 🔥 Slow Burn - This isn't love at first sight. This is obsession, denial, and a battle of wills that neither of them can win. 💀 Violence & Gore - This is Bonten. Expect blood, torture, and morally bankrupt characters who kill without remorse. 🌑 Dark Romance - Sanzu isn't a hero. Sierra isn't a saint. Their love is twisted, possessive, and destructive. 🖤 Angst & Tragedy - "In another life, we'll meet again, and our story will be a happy ending." (But this isn't that life or maybe it is.) 💥 Smut - Of course. This is a Sanzu fanfic, after all. Author's Note: This is my first fanfic, and I'm obsessed with Sanzu. I've read every existing fic about him and still wanted more, so I decided to write my own. Yes, it's cringe. Yes, it's dark. And yes, I have high hopes for this story. If you have any plot suggestions, let me know! (All characters belong to Ken Wakui except Sierra, Adi, and this plot.) Hope you enjoy the descent into madness. 💖 |IMAGE CREDITS: PINTEREST ( I don't own any images used in the fic!)
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" I guess in the love exists certain egocentrism. But this I simply call cruelty." - Y/n " I was running alone in the night. I was seeking for someone to tell. I was thinking about her now. And somehow the city was groaning. Random streets in a fog. My hands were covered with blood. I couldn't see anything from a road. Before my thoughts became blank. I wanted to see Y/n again. Now she was my only place to go. I can't and don't want to be alone. " - Mikey "I watched him falling from grace and did nothing. How different was I thinking back then? Was it only his fault? Or am I also to be blamed? " - Y/n A/n : I wanted to create a story about Mikey for a while now. This time I'm being a little more melancholic and sad. We all love Mikey and I remember how I cried reading the manga. What I'm going for, is to represent the same vibe and make you cry (not in the bad way of course). The storyline is narrated by both Y/n and Mikey. That's how you get to see both sides and how they really felt. The plot will take place in both past (2005 through 2008) and present (2018). ⚠️ May contain smut,drugs, violence and language ⚠️ May contain manga spoilers ✅ Don't forget to vote and leave a comment. Every feedback is greatly appreciated ! ✅ Also, if you're Tokyo Revengers fan, give a shot to my other two books: 👉" All the mess you leave behind " ( Bonten timeline; more smut, drama) 👉" The song of the Crickets" (Tenjiku and Kanto Manji timeline; smut and drama, with a pinch of comedy ) 📝 Note that English is not my first language and I apologize for my pity writing 🌠 All pictures are from Pinterest 🫡 Tokyo Revengers and it's charac

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