The charm that is the Ubu of girls such as "the Younger Sister" which is Kyuuto is opened fully in Innocent! Part 1…Haruka helping with the homework of the neighboring older brother. The disposal that an older brother watches Nan or a chance, and is going to approach the Ruka. Part 2…The older brother who was late for wait with Momoko. The "Younger Sister" Wakana appearance which is new before her who is anger! The battle that is Sex unfolds very much! ！
