Hugo Boss, the owner of a BBQ restaurant Heaven, has a birthmark on his face that ran in his family for the past 3 generations. Because of it, he feels inferior and acts ferocious to prevent others from taking advantage of him. He is actually a big softie at heart. His only love is his pet dog "Yo", and his only friend is Butt, a self-proclaimed artist and the co-owner of Heaven. One day, he meets Yammie, the owner of a pet grooming shop, that has just opened next to Heaven. Yammie is a simple and a little shy girl. Whenever she gets sad, she will suffer from hormonal imbalance and grow a little moustache. She has been in love with Tim, a boy she met in high school. Hugo then sets out to help Yammie win Tim's love, and in the process, the two fall in love. However, Tim finds out that his girlfriend has been cheating on him, and Hugo's inferiority complex got better of him, thinking that Yammie will fall for Tim again.