After class one day the protagonist asked little loli Madoka to let him watch her pee.
It was the start of a glorious shame relationship.
Piss, urination themes.
CVs:
Momoka Yuzuki (as Madoka)
Rikamo Toga (as Hitomi)
Damo. (as Fumi)
Nani Gozen (as Miina)
* Please note that only Madoka is depicted peeing