Yoshioka Shiori

Spoiler

A young girl who pretended to be Aya fifteen years earlier.

She comes from a single-parent home. The father she adored died in an accident during the winter of her first year in middle school. In the spring of her second year, she moved to Matsue due to her mother's job, and the first friend she made at the school where she transferred was Yukari.

Spoiler

Fifteen years ago, she was the one who exchanged letters with Takayuki. The fact that she didn't let him know that she only pretended to be Aya (that she lied) has bothered her all this time. She wants to see him, but she can't act on it.