Akari Kaga

Akari Kaga is Haruto's childhood friend from Hiroshima. She is cheerful, though Haruto says she often hides her feelings, and she was tomboyish as a child. Her father is Russian, and she inherited his blue eyes and light hair.

Haruto and Takashi stood by Akari when they were young, and the three became inseparable friends. She is part of the tennis club alongside Yuzuki.