To romance someone in Assassin's Creed: Odyssey, you just need to find them and complete their side or main quests. Watch for a "romance" option, which just means sex. The following is a list of all characters you can sleep with. There will be a quick cutscene that shows how your character seals the deal. Note: Romance has no effect on future romances. You can romance all characters in the game, if desired. There are no repercussions or negative effects from romancing any character, even if you romance women and men. Your gender selection at the start of the game also does not change who you can romance.

Female

Odessa: She is a young relative of Odysseus. She can be found and rescued on Ithaka, in Odysseus's Palace, to begin her quests.
Auxesia: She is an elderly woman that gives you a quest. She can be found in Phokis, on Mount Parnassos.
Xenia: She is a bronze-skinned pirate that sends you on quests to locate hidden treasures.
Roxana: She is a tough fighter. She can be found on the small island of Hydrea, where she is sparring.
Kyra: She is a long-hair Spartan rebel soldier. She is located in the Silver Islands region, on the isle of Mykonos. She can be found in the Porphyrion Cave.
Daphnae: She is a young "Daughter of Artemis". She can be found near the Temple Of Artemis, in the Phokis region.

Male

Kosta: He is a thick, bearded blacksmith that is located on on Lokris Island. He can be found in the port town on Red Lake Bay.
Alkibiades: He is a lean, silver-haired young man. He can be found in Athens, in the Attika region. You will meet him in Perikles's house in Sequence 4.
Lykaon: He is a lean, rugged healer. He can be found in Phokis, in a town in the Sacred Lands of Apollo.