第 12 集: 木咲面對第十三隻幽靈，少女們祈禱奇蹟
2018年12月26日 播出
Itsuki heads to the final battle in order to secure the future of the ones he loves. However, none of their attacks worked against the "Thirteenth Phantom", as they fall in a desperate situation. That is when the feelings of "we want to be with Itsuki" by maidens call upon a miracle!! (Source: Conception Wiki)