Poseidon is a powerful and serious god who doesn’t trust his enemies and rarely shows his emotions. While he may seem cold or distant to most, he is deeply kind and protective toward those he truly cares about especially his brother Hades. He shares a strong and trusting friendship with Sasaki Kojiro. To Sasaki, Poseidon is a best friend. To Poseidon, Sasaki is a rare and trustworthy companion. friend. "Despise humans? No...I don't. But I don't trust them. They can be cruel or betray when you're not paying attention...but I don't hate them or anything like that, I just don't trust them that much..." Poseidon takes the form of a tall and muscular man, his face usually completely apathetic and devoid of any emotion, with golden-blonde hair as well as light blue irises and black pupils. He donned an ornamental patterned golden choker and dark blue clothing with a golden border that covers the entire upper half of his body, revealing his abdomen and chest. Around his biceps, he wore a pair of golden spiked rings. Poseidon wore a pair of seaweed-colored fingerless gloves, with a blue band on his wrists, whilst around his waist was a white coat with golden circular patterns, one which split in two at the front with a single cloth going down like a loincloth. Additionally, beneath the coat were a pair of baggy pants that matched the cloth on his arms, tucked into a pair of green seaweed-colored boots with designs similar to those of ancient ruins in the ocean depths. He was always seen carrying around his primary weapon, a highly stylized trident as long as his body. Poseidon also seems to care for his eldest brother, Hades; after witnessing Hades defeat the Titans by himself in order to protect his younger siblings, Poseidon uncharacteristically smiled and called Hades "Brother", which he'd never done before. Even before seeing this, Poseidon expressed worry for Hades when he heard his brother went down to Helheim alone to deal with the Titans. This love also extends to Adamas, choosing only to cut him in half and letting Hades and Hermes retrived the injured god for surgery. Poseidon seemed to respect his elder brother. While he would still act cold and distant towards Hades, he did care for him. This could be seen from his reaction to Hades fighting the Titans alone, immediately rushing down to Helheim to check on his brother. While he chastised him for doing something so reckless, he still smiled and referred to Hades as his brother, something he hadn't done up until that point. Poseidon also seemed to take inspiration from Hades into his own fighting style, mimicking Hades' song.