Full Version") is a Japanese manga series written by Kanemoto and illustrated by Hikari Shibata.

It was serialized in Shogakukan's seinen manga magazine Weekly Big Comic Spirits from August 2021 to November 2022, with its chapters collected in five tankōbon volumes.

Tomota Dobara is a nerdy office worker who meets his high school classmate Mio Hayama for the first time in 17 years.

Written by Kanemoto and illustrated by Hikari Shibata, Watashi no Musuko ga Isekai Tensei Shitappoi Full Ver.

was serialized for 40 chapters in Shogakukan's seinen manga magazine Weekly Big Comic Spirits from August 30, 2021,[1] to November 14, 2022.