Yuna is serious and reliable, what will happen when she meets the mature yet slightly airheaded Biyori…?

You are the "first" of everything for me who is afraid of guys.

A 7th grade girl by the name of Mirei is not allowed to do anything after school due to her strict parents, but one day she goes out on her own after her mom has left for work. That day, she meets a boy that seems to be younger than her. What will become of this meeting.

From Chibi Manga:

Riko started a wonderful high-school life with literary and military arts. but she has the feeling she'll get into some trouble. The low grade Kurose Yui is a pervert and an uncool boy. He's detestable! And he stole the chair of the school principal's son who's the best student. He will even find out what Riko dreams about....

Third-year high school student Aya, who's secretly afraid of water, manages her high school's swim club. It's her last summer as manager and her final time managing the swim club for the Inter High Meet, but perceptive Takeru figures out her secret.

From ShoujoHearts:

When Hana was a child visiting her mother's grave, she got to know a young boy named Yuzuru. He was Hana's first love. When she heard that he ended up moving away, she thought that it wouldn't be possible to see him anymore, but...?