Manga written by Mangaka Imazon:
Otouto no Koibito ga Mukashi Choukyou Shita Motokano Datta
A schoolgirl Aoi Yumikura lives happily with her boyfriend Kazuki Satou. But one day, when Kazuki introduces his big brother to Aoi in the house, she freezes. The big brother is, in fact, her former boyfriend who treated her just like his toy. (Source: DLsite)
Chapter 2
7 years ago