第3話: 雨時朝の章 第1部は朝とリンの過去と彼女の健康状態の悪化を詳細に描写する

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Asa's story involving Rin is explained from how they first met to when Asa health starts deteriorating in high school. A bit of Asa's backstory with her mother Ama is touched upon as well. (Source: Wikipedia)