Tulyana is a tomboy who was dumped by her girlfriend three times, so she decides to fall in love with a man instead. Her senior, who works in the salvation army, is the one who awakens the girliness in her, so she decides to flirt with him. It's not easy when he thinks of her as a sister, but she won't easily give up. Methakawin is a new executive of the aquarium and Tulyana's new boss. They both have a problem with each other; since she stole his girlfriend in the past. Their love triangle starts to become complicated at the aquarium.