Yuuki, the facelss male protagonist who is a demon hunter. Together with Sumire, his classmate on Yomihara Academy, he tries to protect Tsukimine from Enma, the demon queen, and her horde of minions. Only a few chosen ones can see the demons and fight them, and Sumire's family has fought them for generations. Yuuki on the other hand, is the first in his family.

Yuuki, the facelss male protagonist who is a demon hunter. Together with Sumire, his classmate on Yomihara Academy, he tries to protect Tsukimine from Enma, the demon queen, and her horde of minions. Only a few chosen ones can see the demons and fight them, and Sumire's family has fought them for generations. Yuuki on the other hand, is the first in his family.