第 1 集: 九重以低語召喚螢，她前往Endo咖啡廳拜訪Saya
2018年1月12日 播出
When Kokonotsu whispers a certain word, it summons Hotaru. On a different occasion, Hotaru suddenly shows up at Café Endo to satisfy Saya's wish. (Source: Crunchyroll)
When Kokonotsu whispers a certain word, it summons Hotaru. On a different occasion, Hotaru suddenly shows up at Café Endo to satisfy Saya's wish. (Source: Crunchyroll)