Shinobu Uesugi lives with his mother and two sisters, lacking any kind of male role model. At the age of seven, his family moves into an apartment complex and becomes neighbors with Saguru Matsunae. Saguru soon becomes Shinobu's 'onii-san' that he goes to for advice throughout the years. Shinobu, now seventeen, is clueless about anything involving relationships or his own body and Saguru offers to teach him...
Yokubou Shounen