: The younger sister and the de facto main heroine of the game. She is lively and energetic but harbors deep guilt, believing Keisuke's accident was her fault because he was bringing her a gift at the time.
The game follows a young male protagonist who wakes up in a remote, unfamiliar house in a rural mountainous region. He is warmly welcomed by a family of three women: : The mother and a widow who initially cares for him. Haruka : One of the two sisters. Chika : The other sister. sisters natsu no saigo no hi haber si es este
| Character | Age | Role | Personality Highlights | |-----------|-----|------|------------------------| | | 17 | Eldest sister, high‑school senior | Responsible, protective, quietly artistic; often hides her own anxieties to keep Riko calm. | | Riko Akiyama | 14 | Younger sister, middle‑schooler | Curious, impulsive, loves the sea; struggles with feeling “left behind” as Miyu matures. | | Haruto Tanaka | 17 | Miyu’s classmate & crush | Soft‑spoken, supportive; shares Miyu’s interest in photography. | | Sora Fujimura | 15 | Riko’s best friend | Energetic, loves surfing; serves as Riko’s “gateway” to teenage independence. | | Mrs. Akiyama (Yukiko) | 42 | Mother | Warm but career‑driven; her impending move abroad creates the central conflict. | | Mr. Akiyama (Kenji) | 45 | Father | Works locally as a fisherman; quietly supportive but often preoccupied with work. | : The younger sister and the de facto
The game chronicles the protagonist's intense physical and emotional relationship with both sisters, culminating in a dramatic, often tragic, finale on—you guessed it—the last day of summer. He is warmly welcomed by a family of