One day, some gears of "time" are found. They don't have any power now, but they might be dangerous. Members of a folklore research club start collecting the gears, but Yone accidentally gets hold of one of them.... Love romance, school exam, and club activity. Their story still goes on...
Atsushi is in his second year of high school. His school is going to get merged with another school after the end of the first period, so this is his "last" summer holiday. He enjoys it spending with his friends. One day, the news comes out that Yukako is going to transfer to another school. He decides to gather his friends, and set up a club to make memories for Yukako...
The main character dreams of meeting his missing sister again. One day he meets a girl who looks exactly like her. The next day he returns to that place only to find her fighting another girl with swords...
Shouta’s mother is the Kaguya-hime from fairy tales. This spring, a new transfer student Tsubasa appeared in his class. In her previous life, she was a prince who was rejected by Kaguya-hime. She recognized features of Kaguya-hime in him and fell in love with him at first sight. However, her confession was stopped by other girls who used to be Kaguya-hime’s suitors and who held feelings for him.
Sousuke has a childhood friend, Asuka. His family often moves due to his father's business. One day, Emily and Kotone, his other two childhood friends, start to live with his family. Emily finds a diary, which Sousuke used to keep when he was a child, and some erotic games they played are written in it. Inspired by it, Asuka, Emily and Kotone start to fight to decide who is the real Sousuke's childhood friend by playing the erotic games they used to play...
When Haruka was small, he was friends with many girls. One day, those girls played a secret game amongst themselves and one of them never appeared after that game. Many years later, while enjoying the sea, he meets a girl who he thought was a mermaid. She was Kanon, the girl who had left them back then. He calls out to her, but she doesn’t acknowledge knowing him.
Haruno Akio lives his days without interest in anything, going to school for a vague reason he himself does not remember. One day a transfer student comes to his class, claiming she knows him and bringing with her the much needed wind of change that revitalizes his stale life and lets him rebuild his relationships with his estranged childhood friends.