Otonari no Bijin Elf no Kyori-kan ga Chikasugiru Ken: Watashi to Ii Koto Shimasen ka?

Upon starting to live alone after entering high school, Watarase meets his beautiful neighbor. He thinks his high school life is off to a dream start with her daily invitations for meals and games. But wait—there's something not quite right about her.. Could she be an elf?! (Source: Kadokawa, translated)