[Original work: A crazy love story from Puu no Puu Puu Puu. The love of a busty, beautiful and sexy older sister. Can you handle it?] The older sister, Takasaki Mia, is beautiful, good at both academics and sports, and is loved by everyone. On the other hand, her younger brother, Yuto, is just average. However, he is a man who can have a normal love life, and is almost in a romantic relationship with his childhood friend, Rin.