Nishimori Aoi’s parents moved to another city for work, but Aoi didn’t want to transfer to a new high school. She stays behindA high school girl Aoi Nishimori’s parents have to move away because of their job but Aoi doesn’t want to because she doesn’t want to change schools so she lives by herself in an apartment. Everything in her life was going ok and straight forward until she met a boy called Shusei Kugayama.
Shusei is the most popular boy in the school and apparently he is called a “prince” at his school. Almost every girl in the school likes Shusei counting Aoi’s friend Moe Shibuya. But Shusei has a habit of turning down girls confessions. One day Moe confessed her feelings towards Shusei but he turned her down.
Because of this Aoi was really mad. But then not very long after that Aoi realised that her neighbour is Shusei. Due to an accident Aoi accidentally causes the sprinklers that is inside Shusei’s room to start working and Shusei’s room gets drenched. Until the sprinkler is fixed Shusei and Aoi stays in Aoi’s room, under the same roof. and lives in an apartment by herself. Shusei Kugayama moves in next to Aoi’s apartment. Shusei is a very popular student at their high school. Due to a mistake, Aoi makes the fire sprinkler go off in his room. Until Shusei’s room is fixed, he stays with Aoi.