THE GIRL IN TWILIGHT

A group of girls living in a small city gather to enact a ritual. They are the “Crystal Radio Research Society”. The sweet and cheery Asuka Tsuchimiya brought this group together with her friends from school. The ritual was merely an urban legend, but events coalesce and what started as play becomes much more... (Source: Pony Canyon USA) — Description from AniList community (anilist.co).