“Oppai Momitai” tte Sakendara, Imouto no Tomodachi to Tsukiau Koto ni Narimashita.
『おっぱい揉みたい』って叫んだら、妹の友達と付き合うことになりました。
Natsuhiko Umboi, a typical high school student, develops a relationship after expressing a desire to touch breasts. A classmate offers a romantic exchange in return for fulfilling that wish. The story centers on their evolving relationship as they navigate the early stages of dating.
