Kohinata Seiya Doesn't Know the “Original Story.” I'm Just a Mob Character in a Rom-Com, and the Beautiful Girl Next Door Is the Main Heroine? So You're Telling Me to Step Aside? Nah, I Have No Idea W

• Author: Miwamohi
• Genres: Tình Cảm Hài, Học Đường, Đời Thường, Light Novel
• Status: Ongoing
• Chapters: 37
• Rating: ★ 4.2 / 5
• Published: 2026-10-04

When the Extra Flips the Script

Imagine waking up one day and realizing you are nothing but a bland mob character. Your entire existence is literally just to serve as a human cardboard cutout in someone else's flashy rom-com. High schooler Kohinata Seiya found himself stuck in exactly that tragic cosmic joke.

But instead of accepting his fate as human wallpaper, he decided to grind hard and become the protagonist of his own life. He spent an entire year sweating it out before entering high school, stepping through those gates with a crystal-clear, dead-serious goal in mind.

Things started going beautifully off the rails when he accidentally intercepted a classic "fated encounter." He swooped in to rescue Mizusumi Akari and Kanzaki Yuuri without a single second thought. That split-second heroic impulse ended up binding the fates of all three of them together.

The Next-Door Hottie and the Clueless Interrupter

Here's the kicker: Kohinata Seiya has absolutely zero clue that these two are the original main heroine and male lead. His blissful ignorance allows him to hang out with them without any sneaky ulterior motives, quickly turning him into a rock-solid emotional anchor for both of them.

What started as a casual neighborly vibe with the gorgeous Mizusumi Akari quickly blossomed into a deep, heartfelt connection. Meanwhile, Kanzaki Yuuri basically became his bromantic soulmate. This trio's dynamic evolves in the most hilariously ironic way possible.

While other calculating reincarnators tryhards are busy plotting to steal the spotlight, our boy is out here accidentally wrecking all their masterplans. Armed with nothing but clumsy sincerity, he "saves" a neglected main heroine, effortlessly sweeping aside all those galaxy-brain schemes like they're nothing.

The Good Stuff

• A highly entertaining premise about a mob character seizing control of his own life while remaining blissfully ignorant of the original script.
• The romance between Kohinata Seiya and Mizusumi Akari is sweet, warm, and genuinely heartwarming.
• The stellar bromance between Kohinata Seiya and Kanzaki Yuuri provides a fantastic balance to the relationships.
• A breezy, cozy pacing that makes for an incredibly relaxing and entertaining read.

A Few Caveats

• The story starts on a rather slow note as it takes its sweet time setting up the characters' mindsets.
• At just 37 chapters, it's a bit on the short side if you're looking for a deep, long-term commitment.
• The slice-of-life school setting means you won't find any high-stakes, adrenaline-pumping drama here.

What the Internet Says

• Novel Updates: 4.2/5 (2 votes, as of 04/10/2026)
• Kakuyomu: ★2,943 and ★13,137 (likes/bookmarks across different versions, as of 04/10/2026)

The Verdict on Breaking Character

Overall, Kohinata Seiya's 37-chapter journey is the perfect literary comfort food. His stubborn quest to become the protagonist of his own story makes for a highly satisfying ride packed with feels and chuckles.

Bottom line: A breath of fresh air for the rom-com genre, perfect for anyone craving a wholesome and genuinely sweet read.

Tags: mob protagonist, rom-com, high school