My Imouto: Koakuma na A-Cup

Synopsis

The morning calm is once again interrupted by a sister's sharp-tongued outburst directed at her brother. Such scenes are routine in the Utsumi household, and Mitsuru's frustration grows as his relationship with his step-sister Miyu shows no sign of getting better. She puts on a sweet, angelic front when their parents are around, but the moment they're alone, she becomes a genuine little devil. One day, Mitsuru stumbles upon the fact that Miyu is insecure about her chest size. He carelessly mentions it, and she explodes in fury. As he attempts to restrain the lashing-out Miyu, the two lose their footing and collapse together. With Miyu's face suddenly inches from his own, Mitsuru finds himself entranced by her adorable features, the warmth emanating from her body, and the particular scent that belongs to a young girl...