Ritsuka Uenoyama, a high school student, was shocked by the singing voice of Mafuyu Sato, and joined the band "Given" with Haruki Nakayama and Akihiko Kaji to join the band "Given" as a vocalist. After joining Midwinter, they succeeded in their first live performance, and Ritsuka became aware of their feelings for Midwinter, and the two began to date. "Given", who continued to work after that, participated in a contest to participate in the festival, and although he unfortunately failed the live screening, it attracted more and more attention.

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