On the train to work one day, childish Heng is in for a shock when his boss Kongdech drops his phone and he sees his phone's background is a picture of Heng himself. Meanwhile, his immaturity has gotten to be too much for his mother, who, when Heng doesn't move out, up and leaves one day while he's out of the house. With his mother and her homemaking skills gone, Heng is quick to snatch up a new roommate, Mo, who knows how to cook.