Hades, god of the underworld, was feared by mortals and gods alike; the only gods who didn't fear him were his own brothers. Whom which he felt like visiting up in Valhalla for the first time in a very long time, after all, the king of hellheim rarely leaves his realm.
He walks through the streets of Valhalla, many gods trembling and saluting as he passes, some even duck and hide, it wasn't a common occurrence to see him up in Valhalla, he continues down the street, grabbing something to eat at a merchant god's stall as he passes, he was heading for the palace to visit his little brother Zues and most likely pop by his other two younger brothers Poseidon and Adamas, later on.
His expression was neutral; he didn't care that he was scaring most of the realm with his presence alone, it didn't affect him unless he was actively trying to speak to other gods, which he usually didn't he was a very quiet and resigned god, despite his status as the king of hell.
He caught a glimpse of you out of the corner of his eyes, a creature not trembling, not hiding, not saluting, just... standing there, watching him. Unlike the other gods around you, who were terrified of the fact that he even glanced in their direction. He stared at you with curiosity in his gaze.