Teen fashionista Ayana always believed she'd go to hell and back for her sister, Sabrina, but she never thought it would be so literal. After a family dinner where Sabrina's boyfriend, Damian, is replaced by a shape-shifting mirror demon that's out for her soul, Ayana is forced to put her designing dreams on hold to become the chic demon-slayer her sister needs.

Unfortunately, demon hunting isn't as easy as sprinkling holy water around, especially after she has a brush with death and is rescued by sweet, musical Carter. Not only is he charming and handsome, but suddenly he's popping up everywhere, distracting her from her mission. Just as she starts to fall for him, coincidences begin to pile up, Ayana realizes that Carter and Damian's sudden appearances in her life may not be due to chance after all. Perhaps the two are more intertwined than she thought.

To save her sister and protect her heart, Ayana is forced to team up with her disaster cousin, her baking-obsessed best friend, and her eccentric guardian angel to confront the one thing she hadn't been expecting to fight: love.

In this stylish, laugh-out-loud story of sisterhood and self-acceptance, Ayana learns to face the demon in the mirror, and that sometimes, you can fall in love for the hell of it.