Systemoverwrite Stories

So I became a really good fan of this anime. And decided to write a Fanfic. Yeah. More. Death wasn't the end; it was a character select screen. Waking up in the body of Natsuki Haibara at the exact moment of his supposed time-leap, a soul from 2026 takes the reins, treating this reality as a total system overwrite. ​While the original Natsuki was defined by regret and social anxiety, this version-a "Self-Insert" with a modern edge-spends his first ten minutes coding a market-shattering AI and his next hour pushing a "mortal" body toward its peak potential. Armed with 2026 meta-knowledge and a request for top-tier martial arts training, he approaches high school not as a student, but as a Level 100 player in a Level 1 zone. ​At the entrance ceremony, a casual slip into English and a cold, detached aura immediately draw the attention of Hikari Hoshimiya and Yuino Nanase. He maneuvers through social interactions with the calculated precision of a "Main Character" who has already seen the ending. Yet, the most profound impact is felt from the sidelines: Miori Motomiya watches in silent distress as her predictable, naive childhood friend vanishes, replaced by a formidable stranger who no longer plays by the rules of her world.