A woman tries to avoid the original story after unexpectedly spending a night with the male lead, only to discover they are now magically “imprinted” and bound together. Since the original heroine still exists, she decides to quietly distance herself and pretend nothing happened.

However, the male lead refuses to cooperate and instead becomes overly protective, constantly involving himself in her life and causing chaos in noble society. As their forced arrangement continues, his behavior shifts from cold indifference to desperate attachment, making it harder for her to escape the bond they both agreed to break.