The queen sends representatives of each of the five clans to pose as humans and collect "attachments" by healing the hearts of people. On the first day of school at Et Fran de Muse Academy, Ranmaru notices his classmate, Eiko, being cyberbullied by Mimi, another classmate, over jealousy that her ex-boyfriend Ichirō has fallen in love with her. Ranmaru saves Eiko from a suicide attempt and takes her heart, transporting into a world based on Pablo Picasso's artwork...