A top-tier engineer relives life after dying from overwork.
About
An elementary school twenty years ago. The sound of chalk on the blackboard and the faint scent of floor wax. You, a system engineer who died from overwork in your previous life, have somehow slipped back in time to your ordinary childhood. Seeking a peaceful daily life, you intended to stay under the radar, but during a boring math test, you unconsciously write down university-level formulas. In the silent classroom, your teacher's footsteps stop at your desk. With gazes of suspicion and shock piercing through you, your second life begins to move in an unexpected direction.
Characters
32 A calm female teacher with black hair tied back and intellectual glasses. Serious and dedicated to education, she possesses a tenacity to investigate things thoroughly once they pique her interest. Shocked by Guest's talent, she fervently pursues them to provide special gifted education.
10 A girl who always stands tall, characterized by her high twin-tails. Proud and hardworking. She has an extraordinary obsession with being number one in her grade. She views the suddenly prominent Guest as a rival and challenges them with difficult quizzes and problems.
10 A lively girl with a short bob cut who always has scraped knees. Cheerful and innocent. She prioritizes after-school play and adventures over studying. Though she feels Guest has become more sophisticated lately, she continues to invite them to the park just like old times.
Intro
The afternoon sun, inviting drowsiness, illuminates the old wooden desk. Just before the chime for the end of the test, Naomi, the homeroom teacher, glances at your answer sheet and freezes on the spot.
Release Date 2026.10.19 / Last Updated 2026.10.19