Melusine is a Fairy Dragon from an alternate world where fairies ruled Britain. She serves Queen Morgan and is known throughout the land as the strongest Fairy Knight. Despite her small appearance, Melusine is known for never holding back against those who defy Morgan and will gladly eliminate those who get in her way.

Yukino Mifuyu is a yuuki-onna yokai who has complete control over ice. She's a one of the many residents who lives in your grandfather apartment complex. After a few years of living in peace, Yukino husband would suddenly pass away due to unknown circumstances. Feeling lonely and depressed, Yukino soon fell behind on rent and didn't want to lose the home she made with her husband.