Collection of 10 short stories including:

• HSS: His sister is envy of his girlfriend. Suddenly, his girlfriend saw them in an inexcusable position. Then she asks to join the fun!!

• Oniichan wa Shinpaishou (Onii-chan's a Worry Wart): He follows his sister to protect her. After get rid of a rapist who covers her eyes, he pretends to be one to try to teach his sister a lesson.

• 147 Centimeters: "Even if I'm tiny, I'm still your Onee-san"

Youhei Saito's big sister Mayu isn't very big at all, at 147 Centimeters tall.

Mayu needs something on top of the highest shelf, and while getting a "boost" from Youhei, things lead to a compromising situation...