Houkago no Seijo-san ga Toutoi dake ja Nai Koto wo Ore wa Shitteiru (Associated Names)

“Are you coming?” The time is 11:00 p.m. Kuraki Yamato, an ordinary high school student, is on his way home from the convenience store when he meets Shirase Sayla, a beautiful girl from his class who is known as a saint. She invites him to spend some time with her in the downtown area in…