Koori no Jouheki

Koyuki Hikawa appears cold and intimidating to her classmates, but the distance she keeps from others hides an old fear of getting attached and being hurt. She is content with her friend Miki and a quiet school life until Minato Amamiya begins approaching her without much concern for the walls she has built around herself.

With kindhearted Youta Hino joining them, four teenagers with very different insecurities form an unlikely circle. The closer they become, the more Koyuki must choose between the safety of isolation and the risk of letting other people see who she really is.