It was published on Shueisha's web platform Shōnen Jump+ from December 2021 to March 2022, with its chapters collected in two tankōbon volumes.

After crash-landing on Earth and escaping federal authorities, he comes across Shizuka, a 9-year-old girl who is bullied relentlessly by her classmate Marina and only finds solace with her dog Chappy.

Realizing the gravity of the situation, Takopi uses another gadget to travel back in time, hoping that he can improve Shizuka's life.

Written and illustrated by Taizan 5 [ja], Takopi's Original Sin was published on Shueisha's web platform Shōnen Jump+ from December 10, 2021,[5] to March 25, 2022.

[2][7] Shueisha's Manga Plus service published chapters of the series in English simultaneously with their Japanese release.