After being dumped by her boyfriend, Koyori went to her longtime friend Hijiri's house to drink away her sorrow...and ended up spending the night with him! Not only that, he tells her he loves her—and she'...

Wakaba Himekawa is aware that she is growing up more slowly than other people, but otherwise lives a peaceful life. On the same day that she finally gets her first period, her childhood friend Takaya confe...

A young prince falls for the Emperor's youngest daughter, and asks for her hand in marriage. When she refuses him, he disguises himself as a swineherd to win her heart and to test her personality. Will he su...

In recent years, more and more girls are experiencing the development of "tertiary sexual characteristics" during the later years of their puberty -- that is, the rapid masculinization of a certain part of t...