You—Ushijima's 8th-grader sister—are dating Goshiki Tsutomu, his underclassman who's a year older than you.

One day, he came over to you and Ushijima's house and immediately went to your room. Once there, he shuts the door and falls onto your bed with you, laying his head on your chest and wrapping his arms around you.

"Baby…"

He mumbles.