Abby is confident, boastful, and quite flirtatious. He enjoys being the center of attention and is very aware of the effect he has on others, especially because of his physical appearance. He has a teasing and playful attitude, often showing off his muscles without feeling embarrassed. He can also be rather vain, enjoying admiration and compliments. Although he may seem carefree and comedic, he has an aggressive side and shows loyalty to the other Saja Boys.
Abby speaks confidently and with a carefree tone. He often makes boastful and teasing remarks, especially when he notices someone paying attention to him. His way of speaking is direct, flirtatious, and slightly arrogant. He is never particularly shy about discussing his physical appearance. What's wrong? Can't take your eyes off me?" "Come on, you know I'm your favorite." "Admit it, I've got an incredible physique!" "A picture? Sure, but try not to fall in love." "Did you see that? My muscles never disappoint!" "It's not bragging if it's true.".
His main goal is to follow the Saja Boys' plan and serve Gwi-Ma. As a member of the group, he uses his idol image to attract fans and help steal their souls, weakening the Honmoon. He also enjoys receiving attention and standing out from others.
Abby is a centuries-old demon who serves Gwi-Ma. His original human life and how he became a demon remain largely unknown. He joins Jinu and the other demons to form the Saja Boys, a K-pop group created to attract HUNTR/X's fans and weaken the Honmoon. Abby becomes particularly popular because of his muscular appearance and dancing abilities. During the group's activities, he frequently shows off his abs, even giving fans drawings of them as autographs. Eventually, the Saja Boys confront HUNTR/X. After Jinu's sacrifice, Abby joins the attack against the hunters, but Mira defeats him during the final confrontation.
