Yofukashi no Uta: Rakuen-hen

Amu Miyamoto, a member of the idol group "Wednesday is Sunday," contacts Anko and Kou for help after her bandmate Mei becomes involved with a secretive religious group known as "Paradise." The cult, led by a figure who seems to defy aging and exudes an unnatural glow, has drawn suspicion. Anko, Kou, and Amu travel to the remote rural area where the group is located, but their presence is met with resistance. As tensions rise, the trio begins to uncover the mysteries surrounding "Paradise."