Shizuku Mizutani is unconcerned with her peers, only concerned about her academics. When she meets Haru Yoshida, a violent troublemaker who stopped attending class after getting into a brawl early in the school year, her icy outlook on life begins to shift. He is, nevertheless, somewhat dissimilar to her in that he, too, knows nothing about human nature and has no friends. Shizuku is taken aback when he declares that she would be his buddy and expresses his emotions for her upon meeting her.