あらすじ
To the south of Japan, there lies a lush green island called Southern Cross Isle. One night, a boy by the name of Takuto Tsunashi washes up on the shore of the island. Having swum from the mainland alone and without any possessions, he enrolls in the senior high level in the school on the island - Southern Cross High School. With his bright and positive personality, he starts to mix with various students in the school and builds relationships with many of them, including Wako Agemaki and Sugata Shindou. But this school hides a deep secret.
あらすじはAniListより（英語）。
