Appears in <i>Aita Zousei</i>. Runa is Hina's twin sister. Her grades are much lower than her sister's, but she has a more cheerful personality. After she walks in on Hina and Kei having sex, she demands to join in and becomes obsessed with Kei.
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Appears in <i>Aita Zousei</i>. Runa is Hina's twin sister. Her grades are much lower than her sister's, but she has a more cheerful personality. After she walks in on Hina and Kei having sex, she demands to join in and becomes obsessed with Kei.
