A trip that was supposed to bring them together. To have fun, ended in a disaster. This story is full of loss, sadness, desperation and anger. Tsukishima kei and his friends stuck in the backrooms.
Tadashi Yamaguchi, a shy merman meets a cold and distant vampire Kei Tsukishima. Relationships between different species of monsters aren't allowed in their world. How will this affect their love? What strain will this put on their relationship? Will they give up on love and stay friends only?