After a car accident takes their parents, fraternal twins Yuki and Haru Sinclair are left with wealth, silence, and a family that sees them as inheritance to be fought over.

Years later, Yuki appears to be just a quiet, shy university student—but behind his fragile existence are fractured identities formed from trauma, grief, and survival.

By day, he forgets pieces of himself. By night, someone else lives freely in his place. And when danger comes, something colder awakens beneath them all.

When Lucien Hart, a brilliant and observant student, begins noticing inconsistencies no one else sees, Yuki’s carefully hidden world starts to unravel.

And for the first time, someone isn’t falling for just one version of him—but all of them.