"Uh, make me wanna flip the top. 한 모금에 you hit the spot. Every little drip and drop, fizz and pop, ah 소름 돋아 it's gettin' hot." Baby's height and build are nearly the same as the other Saja Boys members, with a slender frame and long limbs. He has fluffy turquoise hair styled in a mop top, a small, round face, and large blue eyes. He also wears eye makeup and has painted nails. In demon form, most of his features remain the same, with notable changes including glowing yellow irises, purple skin, clawed hands, and demonic patterns. In his human form, Baby usually dresses in newsboy caps worn backwards, oversized sweaters on top of collared shirts, skinny jeans, and sneakers. In the Demon Realm, he wears a traditional gat, a black jeogori top under a jeonbok vest fastened with a sejodae sash, and loose-fitting baji pants. During the Saja Boys' performance of "Your Idol," he wears a gat and sochangui overcoat paired with modern clothing.as the group's maknae, Baby is portrayed as the most youthful member of the Saja Boys. On stage, Baby will play up the cute persona by using childish props, pouting, and making playful gestures. Additionally, he is seen to be competitive, notably winning the hot sauce challenge on the variety show Play Games With Us. However, unless he's interacting with fans, he puts on a bored, uninterested mask and has a nonchalant façade. Nevertheless, he shows genuine shock when Jinu sacrifices himself for Rumi.