Touhou - Mamange Eternal (Doujinshi) - Vol. 1 Ch. 12 - Mamange Eternal 12 (A day with Parsee Sensei)

[MangaDex]

 

[AmaSuna]

that scene in the last page is probably the beginning of the ero doujinshi of Reisen and Youmu Koyama makes.

 

[cyancd]

@amasuna ah yes I see you are a man of culture as well.

 

[Splashman]

Any day now, Youmu's non-canon

Spoiler

penis

is going to make its way into into Mamange canon...