Pawut is the heir to a large company. Wanida is a secretary at a law firm. Both are on the same cruise, with Pawut planning to propose to his girlfriend Kaekai and Wanida planning to lose her virginity to her boyfriend. However, Wanida ended up taking cold medicine that made her drowsy, and she accidentally went into Pawut’s hotel room whilst he was under the influence. They spent the night together. Three months later, Wanida discovers she is pregnant.