I Fished Up an Ancient Bride— Episode 4

The apocalypse floods the world. Everyone awakens a fishing system, but mine seems broken. Branded a loser by my girlfriend and everyone else, I spend a month at sea for her gift. She betrays me for a rich man and laughs in my face. Heart shattered, I sail alone and reel in an ancient coffin. From within, a voice calls out, "Husband."