Sophie, a boy with vampire and human blood, is transferred from an orphanage to an institution called Clan. The school houses vampire boys who have reached their Cocoon period, or puberty in human terms. Sophie has a fateful encounter with a boy named Ul while being coldly greeted by the vampires around him. As Ul continues to research the “power of immortality” that vampires once possessed, he learns of the existence of TRUMP, the original vampire that is said to live forever, and begins to crave eternal life. Eventually, Sophie and Ul become entangled in the deep fate surrounding the legend of immortality... A manga adaptation of the origin story of playwright Kenichi Suemitsu’s popular series! A Gothic school fantasy that beautifully spins the conflicts of impressionable and sensitive boysー!