Tennen Doumei
天然同盟
A high school girl named Tamako lives by herself with her older brother. A boy named Akihiro Tsuchiya, who has a strong presence, suddenly appears in her life. Initially unimpressed by his clumsy behavior, she gradually begins to warm to him. As she becomes increasingly frustrated with the pressure of her current home life, she decides to move in with Akihiro and his unusual younger cousin.