Yoshiko Yamada

Yoshiko Yamada is Seina's little sister. She, along with Mister and Mrs. Yamada had pressured Seina to fill-out the Galaxy Police application form that Amane given him, hoping it would be some contest form. At the end of the series, it is learned that Yoshiko had proposed to marry Kiriko Masaki little brother - and Seina's best friend Kai.

Voice credits

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