Kangin, a salary man who is raising Donghae, a toddler, by himself. After an event he get's closer to his neighbor Leeteuk, a gay university student. Kangin gets attracted to Leeteuk who is fond of children, but held himself back thinking he already gotten divorce recently, yet Donghae starts to throw tantrums about going to Leeteuk's house all the time, and Kangin is confused.