Junna, an ordinary high school student, has a twin sister Senna. Although he is an elite student, his life has been marked by tragedy: a traffic accident took the lives of his parents and left him with no memory of his past. He has been raised by his relatives, but his life is forever changed when he reunites with Senna in the present day. The two share a pleasant high school experience, and Junna begins to feel a sense of rebirth, surrounded by new friendships and environments. However, memories from his lost past start to resurface, forcing him to navigate the intersection of his past, present, and future.
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