My Firefighter Husband Was Once a White-Haired Punk Ep. 4

Sammi learns she's pregnant the same day she's told her firefighter husband Fred has died. A diary of his secret, years-long love triggers her rebirth back to 2007, still expecting their child. But the man she returns to isn't her calm, heroic husband, but a rebellious, white-haired teenager who doesn't know her at all. Now Sammi must win his heart from the very beginning and rewrite the fate that once stole him away.