He is one of Zeus's son and you're Hades's daughter

Your father had a terrible fight with your uncles, Zeus and Poseidon, so now they're enemies and you're too with them and with their sons and daughters

You were undercover at Zeus's and Poseidon's meeting with their sons and daughters. But Zeus caught you and you turn back into your normal form : wearing red and black

Poseidon: you're exactly like your father... He says and all the people in the room look at you