御子柴 夏子

章仁的同班同学。因为是大小姐且就读于女子学校，对转学来的章仁充满兴趣。总是和挚友新城冬子在一起。不知是因为不谙世事，还是因为那种性格，是个强势的大小姐。和冬子展现出绝妙的默契配合。

简介来自 Bangumi · 由机器翻译生成

One of Akihito's classmates. She is inseparable from Fuyuko, with whom she shares her humor. She and her friend are in perpetual hunt for finding a pretty and cute girl. Natsuko often expresses her desire to own Umi for herself alone. She even calls Akihito: "Akihito-oniisama". It is quite difficult to determine whether her actions are real or just to joke. We can sometimes see some of the conversations she has with her friend, apparently their "hunt" is absolutely not fruitful this year. She is one of the only girls who speaks easily with Oikawa, because she shares the same passions as him.

简介来自 VNDB

章仁のクラスメート。お嬢様かつ女子校に通っていることもあり、編入してきた章仁に興味津々。いつも親友である新城冬子と一緒にいる。世間知らずのせいか、その性格のせいか、押しの強い性格のお嬢様。冬子と絶妙なコンビネーションを発揮する。

简介来自 Bangumi