A shy teenage boy's inability to say no is tested when a headstrong girl drags him on a mystical journey amid summer snow to find her missing mom.

In the gilded enclave of the imperial court, Minamoto Hiromasa befriends the mystic Abe Seimei, solving tricky cases rising from the demonic realm.

One summer day a group of sixth-grade boys have an argument about whether fireworks are round or flat when viewed from different angles and embark on a journey for the answer during the annual firework festival. Meanwhile, one of their classmates, Nazuna, is troubled by her parents' separation and decides to choose one of the boys - Norimichi or Yuusuke - to run away with depending on who wins a race at the pool.

Ousai Academy was originally an all-girls high school. Due to the declining birth rates in recent years, it was converted into a co-ed school. The first year male students would find themselves surrounded by girls and unfortunately, Tsuda Takatoshi is one of them. What's worse, he gets scolded on his first day by the student council president Shino Amakusa, which did not give a good first impression of him. Tsuda also meets the other student council members while getting scolded, and in the end, he gets late for class. As an apology for ruining his morning, Shino lets him join the student council for various of "reasons" and he accepts it, or rather, he's forced to accept. Thus begins his days as Tsuda soon realizes that he's the only normal student in Ousai Academy...

Two teens in a "perfect" relationship keep a dark secret: they've agreed to use each other because they cannot be with the ones they truly want.