Watashi no Musuko ga Isekai Tensei Shitappoi Full Ver.

Watashi no Musuko ga Isekai Tensei Shitappoi Full Ver. (私の息子が異世界転生したっぽい フルver.) 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.

Plot
Tomota Dobara is a nerdy office worker who meets his high school classmate Mio Hayama for the first time in 17 years. Mio has recently lost her son in a car accident. She is convinced that her son has reincarnated in another world and asks Tomota to help her meet him again.

Publication
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, to November 14, 2022. Shogakukan collected its chapters in five tankōbon volumes, released from December 10, 2021, to January 12, 2023.

The manga has been licensed in France by Mana Books.

Reception
The manga was nominated for the sixth Takao Saito Award in 2022.