When music student Celestia falls from a rooftop, she plunges not to her death but through a dimensional tear into Atheria—a magical realm where she transforms between human and drake-folk with each sunset. Mistaken for a monster, then reluctantly engaged to a werewolf prince as part of a diplomatic charade, Celestia finds herself magically bound to three very different beings. As she navigates this strange new world of ghosts, elves, and werewolf politics, she discovers her unique ability to resonate between dimensions—a power that makes her both extraordinarily valuable and dangerously hunted. With interdimensional tears threatening both worlds, Celestia must master her abilities and decide where she truly belongs before the boundaries between worlds collapse entirely.