Beginning his first year of high school, all Matsuboshi Raidou wants is to make friends—starting with the cute, tiny, and soft-spoken Reina Aharen, who sits right next to him in class. Unbeknownst to Raidou, Reina shares the same sentiment, but she has a problem. Awkward and timid, Reina is incapable of determining how chummy she has to be when approaching a person. Due to Reina's complete inability to gauge personal space, the two struggle to spark their unlikely friendship, as even the simplest tasks like talking seem impossible for them. But despite the countless yet pointless challenges that hinder the pair, the overly imaginative Raidou will do whatever it takes to befriend the indecipherable Reina. Reina Aharen, a small and cute student with a quiet voice, is quite bad at determining distance and personal space. Sometimes shes 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.