Hanairo Heptagram

Since leaving his hometown of Goshiki-mura in elementary school, Hisaya has lived in Tokyo. Lately, he keeps dreaming of a young girl urging him to return. Feeling drawn to a rural life, he heads back. After reuniting with his childhood friend Tamami, enrolling in the local school, and staying at the inn run by Tamami's parents, he's ready for a quiet life. Legend says the local hot spring grants special powers. One day, he finds Tamami naked in the hot spring, her body aglow. A strange cat-like being convinces him to sign a contract, leading him to the school's broadcasting room. The principal, Mao, reveals this is the secret Heptagram club. Mysterious 'arch' incidents have been plaguing the town, and the Heptagram members must use their anti-arch powers to solve them. Because he witnessed Tamami's secret, he's recruited to assist the girls. Hau~ Omochikaeri!