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Haru, a teenager who lost his memories in a traffic accident three years ago, lives with his legal guardian Kiriyuu. During a school trip, Haru and his friends explore an ancient laboratory, triggering questions about his past. Kiriyuu, a protective figure, supports Haru as he navigates his daily life and school friendships. Haru’s classmate Mio, a curious and empathetic girl, grows closer to him through shared experiences. The group encounters mysterious elements tied to the lab, prompting Haru to seek answers about his missing memories. Their interactions focus on uncovering truths while maintaining their bonds in a seemingly ordinary high school setting.
