By Kou Fumizuki.

Chika has some girlfriends over--and one thing leads to another, which leads to a bath. But before they get dressed, their messing around causes some problems, and Kaoru sees them all naked! Meanwhile, Aoi is lonely because Kaoru is working so hard at his studies--but then she receives a surprise visitor who reveals a lot about Miyabi and Aoi's relationship.

Recommended age 16+. English manga graphic novel.