Reina Aharen, a small and cute student with a quiet voice, is quite bad at determining distance and personal space. Sometimes she's inches away from your face, and at other times, miles too far! The only one who tries to understand her antics is Raidou Matsuboshi, who is seated beside her in class. He has a menacing face, but in reality, he is a kind boy with an imagination that can run wild at times.
Raido spent middle-school isolated due to his unintentionally unfriendly appearance, and hopes that high school will be different. He decides the first step to being more social will be to get to know Aharen Reina, the girl who sits next to him. She seems distant at first, then a little too close, and before long Raido comes to understand that Aharen has more than a little trouble at gauging the distance between herself and others--in more ways than one.
Aharen finds herself having even more trouble with distance than usual thanks to her vision being impaired. When Raido tries to help her with eye drops, he incurs the wrath of Aharen's imposing childhood friend.
As Aharen and Raido's friendship continues to fan the flames of Ms. Tobaru's imagination, the festival season arrives, with the taciturn duo and their friends heading out to enjoy the fireworks.
An absent-minded Aharen finds herself missing her lunch, and is forced to contend with the howling masses at the school counter, in addition to Raido's competitive streak, and Futaba's one-sided romantic rivalry.