Koe de Oshigoto! - Vol. 5 Ch. 26 - Speaking of Miko-san?

[MangaDex]

 

[spauldo]

The plot for the game is the same as the first part of the H-manga "Puberty Crazies." I thought it was familiar.

 

[Grimmycoffee]

That's a much more detailed explanation about anal sex than I expected.