Percy Jackson and the Olympians: Legends

Ethan was a teenage boy of Japanese descent and looked to be around sixteen years old during his first fight with Percy. He had a thin build, glossy black hair, and a black eye patch over his left eye. As an enemy demigod in Kronos' army, he was generally seen wearing Greek armor; according to Percy, it hung on his body loosely due to his slim build.

Ethan was a brave, impetuous boy who was very driven by his goals, and according to Percy he was a well-trained fighter. He followed his goals and tried to achieve them the best way he could, even if it means betraying those he previously allied with. Like his mother, Ethan had a strong urge to bring balance to things, feeling that the minor gods deserved more respect and eventually paid Percy back for saving his life.

Ethan Nakamura was a Greek demigod, the son of Nemesis and Mr. Nakamura. He joined the Titan Army in the Second Olympian War, but betrayed them and was killed by Kronos during the Battle of Manhattan. To respect Luke and Ethan's dying wishes, Percy uses his gift from the gods to have them swear on the River Styx that they will honor and claim all the children of all of the gods by the time they turn thirteen, and honor the minor gods themselves by putting cabins in Camp Half-Blood and thrones on Olympus.