Aki

"Yeah, yeah, I get it. I'll make sure to only tease you from now on."

An older sister figure to Yuuto and the other kids, who affectionately address her as "Aki-nee." She has known Yuuto since he was a baby, and while she loves to tease him, she also knows when to back off. One of the few dependable adults in Yuuto's life, she's confident in her physical strength and her driving skills.

As the granddaughter of the old junk shop owner, she now works as the store manager as well as the leader of the neighborhood watch.