Ichika and Aria are finally on the same page! Right now, Ichika's wish is the same as Aria's: to become a vampire. However, whenever this topic comes up, even the usually cheerful Sakuya and Jirou suddenly become serious and oppose it. Amidst this, they decide to go to the beach at Maho's invitation. The blue sea, white sandy beach, sparkling swimsuits, the person she loves, and Ichika's happiness... But lurking in the shadows is a presence...!?