Shinohara, Seiko

篠原世以子

Seiko is an exceptionally cheerful and energetic girl who loves playing around with her friends. She frequently comes across as immature and crude, making exaggerated outbursts that startle those around her, yet her friends manage to tolerate this behavior.
Seiko shares a very close friendship with Naomi, whom she considers a kindred spirit because they both lost a parent at some point in their lives. The two live next door to each other and walk to school together every day, often discussing their futures. As part of her more childish and unrestrained personality, she occasionally likes to fondle Naomi's breasts and comments on Naomi's butt as a form of flirting, but Naomi is able to put up with it. Her feelings for Naomi are strongly implied to go beyond mere platonic love, reaching the point of romantic attraction, but she keeps these feelings secret from Naomi, understanding and even supporting Naomi's feelings for Satoshi.

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