Diavolo, the prince of the Devildom, harbors an unlikely dream—he wants angels, demons, and humans to live in harmony. For a start, he would like to see members of all three races learning alongside each other at the Royal Academy of Diavolo and practicing coexistence. However, the human he meant to summon to take part in the exchange program unexpectedly materializes as a fluffy pink sheep with no memories!

Christened "Ibuki" by the seven demon brothers who are tasked with taking care of them, this poor little lost lamb must carefully navigate the turbulent relationships of the ultimate dysfunctional family. While they should merely hope to survive until they regain their original appearance and identity, perhaps Ibuki might find a space to belong that suits them just as they are now.