Now she feels drawn toward the aquarium and the two mysterious boys she meets there, Umi and Sora. They were raised by dugongs and hear the same strange calls from the sea as she does.Ruka's dad and the other adults who work at the aquarium are only distantly aware of what the children are experiencing as they get caught up in the mystery of the worldwide disappearance of the oceans' fish.

    She will finally come face-to-face with the other queen-in-waiting, Leandra. In this game of chess, two queens must make power moves in order to rule the land.

    Thus begins the tale of a legend, of a boy who would become one of the Four Champions of Rubrum, of the man who would become feared as the Ice Reaper...

    When she meets an angel named Hinata, he's eager to team up with the half-blood to take down a vampire that has been attacking humans. Tsukimiya is surprised to find that Hinata is a capable partner, but when the vampire is slain, it is Hinata who claims its demon blood, leaving Tsukimiya to be taken by the curse. In a last-ditch effort to save herself, Tsukimiya tries to drink Hinata's blood, now mixed with the vampire's pure demon blood. But in taking the blood that will save her, Tsukimiya has also transmitted the curse that will kill her. Hinata and Tsukimiya now share the curse...and they're running out of time.