Season 1 of Twilight Bond premiered on August 13, 2018.

Duenpattra's grandmother was said to have committed suicide by poisoning herself so Duenpattra came down to the south to live in her grandmother's house to help with the investigation. She met a police officer named Captain Marut who was investigating the case and started to have mutual feelings for him. But then she forgot about him once she saw a mysterious man wearing just white pants in her grandmother's mirror.