抜け殻のカラダに入る練習 Practice to enter the empty body (Pixiv Fanbox)

先輩魂が後輩魂に人間の肉体への入り方をレクチャーする。

A senior soul lectures a junior soul on how to enter a human body.

English sub:

This is the human body that I have entered and used until now. It's easy to get into because I've been using it for a long time. Please come and join us.

yes. I'll try.