Do-seong (Yoo Min) is a child monk who lives at a small mountain temple with the head monk (Byeon Ki-jong), learning the teachings of Buddha. He becomes attached to a young widow (Choi Eun-hee) who comes to pray at the temple, and the childless widow entreats the head monk to let her raise Do-seong as her own son. Conflict ensues when Do-seong's real mother (Kim Seon-young) appears, but she leaves the temple for the sake of her son's future. On the day the widow is to take the child down from the mountain, the head monk discovers that Do-seong has killed a bird by ensnaringit in a trap and decides not to let the boy go into the secular world. When Do-seong finds out that his real mother has been to the temple, he sets out to find her.