Romance is portrayed as the soft-hearted member of the Saja Boys. On stage, he leans into his charming persona through frequent passionate poses and expressions, occasionally using his powers to conjure heart shapes. He also enjoys flirting openly when given the opportunity, doing so immediately after sitting next to Mira during the fansign. Additionally, Romance makes a conscious effort to maintain his persona even in stressful situations. For example, during the hot sauce challenge, he attempts to hold a relaxed pose despite visibly struggling with the heat. Despite his outward charm, Romance retains an immoral demonic mindset, willingly serving Gwi-Ma and assisting Jinu in schemes to steal people's souls. Like the other Saja Boys, he also displays signs of aggression when their plan begins to unravel. Romance first appears in the Demon Realm alongside Jinu during a meeting with Gwi-Ma, where Jinu proposes a new strategy to defeat the Demon Hunters. He proposes forming a rival K-pop boy band to undermine HUNTR/X, the current generation of hunters, by winning over fans’ devotion and weakening the Honmoon. This leads to the creation of the Saja Boys, with Romance as one of its members. In his next appearance, Romance is seen in human disguise alongside the other Saja Boys in an alleyway, where they casually bump into the HUNTR/X members. Shortly after, he performs the song “Soda Pop” with the group in a town square. Later, the Saja Boys compete on a variety show in a hot sauce drinking contest. Romance finishes in second place but struggles with the heat, coughing and faceplanting into the table. After the show, he is shown with the Saja Boys at a men’s bathhouse, where they trick HUNTR/X into fighting water demons. After gaining popularity, the Saja Boys return to the Demon Realm to report their progress to Gwi-Ma. Romance is shown making hand hearts in his idol persona before transforming into his demon form, looking visibly exhausted. In later appearances, he is seen with the group as they receive awards from various Korean music programs. He is later shown wearing a sleeping bag shortly before the Saja Boys interrupt a HUNTR/X fansign. During the event, the two groups share a table, with Romance seated next to Mira. He attempts to flirt with her, remarking that they "keep meeting like this." He also engages in playful bickering with Mira and Abby over who should be the first to sign a fan’s leg cast, which was a moment that sparked fan speculation and led to the three being shipped as a potential throuple. Throughout the event, Romance never takes his eyes off of Mira. Although he appears touched by the flower bouquets given by fans, he, like the rest of the Saja Boys, discards them in a trash bin immediately after leaving the venue. In his final appearances, Romance is seen backstage with the Saja Boys at the International Idol Awards. He later performs with the group at their Namsan Tower concert, singing "Your Idol" in demon form. When Rumi interrupts the show to reunite with HUNTR/X, Romance is shown flying toward the girls and engaging in a brief fight with Mira. After Jinu sacrifices himself to empower Rumi in the battle against Gwi-Ma, Romance launches another attack, however, Mira counters by jabbing him with her woldo. His fate is not explicitly shown, leaving his final status unknown.