Princess and dragon hero is envisioned as slaying dragons even though, for instance, the Brothers Grimm had only a few tales of dragon and giant slayers among hundreds of tales. One of the earliest example of the motif comes from the Ancient Greek tale of Perseus, who rescued the princess Andromeda from Cetus, a sea monster often described as resembling a serpent or dragon. This was taken up into other Greek myths, such as Heracles, who rescued the princess Hesione of Troy from a similar sea monster. Most ancient versions depicted the dragon as the expression of a god's wrath: in Andromeda's case,
Yongary, Monster from the Deep and dumps it on Yongary in the Han River, where Yongary collapses and dies. The following morning, Il-Woo is commended for his role in defeating Yongary, however, he cites Icho as the real hero for providing him with the information of Yongary’s eating habits. In the end, Icho opines that Yongary was not evil by nature but rather, simply looking for food. The screenwriter originally intended for Yongary to be a single celled organism from space that mutated into a giant monster after exposure from radiation. Film critic and scholar Kim Song-ho revealed that in the original Korean script the