Tonagura!

Seventeen year old Nakaido Hirosuke is just your average high school student. One morning as he arrives at the train station on his way to school, he catches sight of a beautiful girl, Ajimu Yasuna, and immediately falls for her. The two of them get to know each other and become friends, but he can't confess his feelings and she is unsure of hers. As events and other people present obstacles for the potential couple to clear, their relationship begins to develop and their feelings become clear.

Many people have fond memories of meeting a certain teenage boy in their younger years. However, their ages vary widely, and each remembers him as a teen. This story follows the intricate intertwining of their various stories and how this young man, who apparently lives outside of time, has affected each of them.

Yuu Ayase, son of a late legendary actress, is overwhelmingly mediocre. When he’s invited to stay with his mother’s friend, Yuu is shocked to find out that he’ll be living with three prodigy sisters who possess both beauty and talent…and who rule his new school as the Three Emperors. Can Yuu manage to melt the sisters’ cold hearts and fulfill his mother’s last wish for him to build a happy family?

One morning, Wataru Hoshino found a sleeping girl - in nothing but her underwear - in his room. When she woke up, she quickly escaped by jumping out of the window, but not without punching Wataru in the face first. This girl, Rinna Sawaki, ends up being a transfer student of Wataru's school, as well as the new roommate of Wataru's dormitory. Wataru lives with four other girls and their school teacher, but due to Temizugawa Heavy Industry's cancellation of their aviation branch - South Sakojima Island's major company - the families involved with the corporation have to be evacuated in one year. As a result of this, the four girls have to leave the island in one year's time. Knowing this, Rinna refuses to become friends with Wataru and the other girls, because of the pain that she might experience as a result of their eventual separation. However, Wataru disagrees with her, and over the course of the year, tries to convince her otherwise.