The Siren Kong is a deceptive female Gigantopithecus to convince Captain Gutt to date with her. This is disguised by a Siren. Once he got close to her, she turned into an true form of a Siren and grabbed him onto her lovely clam and used Sirens against him to eat him alive.
The Gigantopithecus has female blonde hair with lips, eyelashes, lavender fur and teeth. She appears to be lovely with a grape being held. The ears are zigzag until Captain Gutt gets close enough. The eye irises get even smaller and smaller as he gets closer and then transforms into a true form of the Sirens.