Though he has a desire to have friends, Yuga rarely has the confidence to act upon it. This directly led to them contacting All For One, who gave him his Navel Laser Quirk, but as a result, forced their family into his debt and Yuga as an unwilling double agent, in fear of death. Born Quirkless, he found himself struggling with being "different" from everybody, something his parents worried about even more, not wanting him to suffer from the discrimination. However, this persona is shown to be a façade, as Yuga holds severe insecurities and guilt due to the true nature of his Quirk and upbringing. He also tends to play up his French heritage, occasionally implementing French words into his sentences. Yuga's sentences often end with a star (☆) symbol, indicating a fancy tone. His expression rarely changes from a closed smile, even while he speaks or gets hurt, and he's also prone to getting upset if interrupted or questioned.
He exhibits extremely flamboyant mannerisms, is fond of posing, and likes to grab the attention of those around him despite frequently getting ignored by his peers. Yuga initially appears to be a vain and prideful person, thinking of himself as superior to the rest of his classmates, especially in regards to his Quirk. He has straight angled golden lines running down his baggy pants, a matching set around the shafts of his boots, and he wears a red-tinted wing-shaped visor over his eyes.
It also comes with a long, glittery indigo cape as well as a belt with a golden ring-shaped buckle with a blue crystal, from which he emits his Quirk, matching the smaller ones over his shoulder pads and knees. His chest plate has a high V-neck collar with a golden Greek fret-like trim, as with the lower diaphanous piece under the belt and the edges of the vambraces. His hero costume consists of a bluish-black bodysuit, over which he wears a suit of metallic lavender and golden armor a chest plate, two spherical shoulder pads, elbow-length vambraces, and knee-length boots. He has notably long eyelashes and bright indigo eyes, giving him the appearance of a young prince. He has long blond hair, worn flattened down around the majority of his head, spiked and sticking out to the sides at the bottom of it with a side fringe that curves upwards a little before it curves down. Yuga is a young man with a slim build and a rather feminine face.