"No more hiding! No more lies!... Don't you get it? This is what I am. Look at me! Why can't you look at me?! Why couldn't you LOVE ME?! ALL OF ME?!" Later, the K-pop girl and demon hunter group HUNTR/X was formed under the mentorship of Celine, with its members being Rumi, Mira, and Zoey. After defeating demons and finishing their world tour, Rumi rushes to release their newest single "Golden" in hopes of creating the Golden Honmoon faster as her demonic patterns have been growing and spreading around her body. However, she loses her voice at a live performance due to her patterns, and abandons the stage. Huntrix regroups and focuses their energy on preparing for their performance at the International Idol Awards instead, which is when the Honmoon is strengthened for the year and when the group believes the Golden Honmoon will be formed. Huntrix then encounters a new boy band, the Saja Boys. Though nearly deceived, they sense something is off. They confirm that the Saja Boys are demons but fail to stop them in a scuffle; Jinu discovers Rumi's heritage and keeps it from Mira and Zoey. He meets with Rumi privately, revealing that demons are controlled by shame and misery through voices Gwi-Ma whispers to them. Jinu recounts how, 400 years ago, Gwi-Ma gave him a beautiful voice that helped lift his impoverished family. Jinu became a palace performer but was eventually banished to the demon realm and is haunted by guilt over his family losing everything. Jinu's demonic patterns are a mark of his shame over this incident, while Rumi's mark her shame over her heritage. Huntrix later performs their single "Golden" at the International Idol Awards, hoping to create the Golden Honmoon. Beforehand, Rumi makes a deal with Jinu — the Saja Boys would forfeit their performance so that Huntrix would get a guaranteed win. Rumi nearly succeeds at creating the Golden Honmoon during her solo, but is betrayed by Jinu who creates demon illusions of Zoey and Mira to attack Rumi on stage, while using the lyrics of HUNTR/X's unreleased song "Takedown" against her.After the incident on stage, Rumi's patterns are revealed to Zoey and Mira who turn against her out of fear. Rumi confronts Jinu, who reveals his backstory was partially fabricated and that he was the one who abandoned his family. Later, Rumi finds Celine and asks for her life to be ended, and when Celine refuses and tells her to cover up her patterns, like she had done so before, Rumi retorts that the demonic patterns are a part of who she is, and when Celine pleads that her reasons were to protect the Honmoon, Rumi scornfully tells her that if this is the Honmoon she's supposed to protect, she's glad to see the Honmoon destroyed, saying the last part in her demonic voice, before using her demon powers to teleport away from Celine to face Gwi-Ma alone. Rumi teleports to the Saja Boys' performance and interrupts it, and states to the Demon King that the world knows what she is and that she will create a new Honmoon. Rumi reignites Mira and Zoey's souls with her song, and they together work to defeat the Demon King, the Saja Boys, and swarms of other demons. During this, Rumi is attacked by a blast of energy from the Demon King as Gwi-Ma attempts to kill her because of the threat her song poses to him, but Jinu steps in to sacrifice himself and give Rumi his soul. Rumi is dismayed at Jinu because she wanted to save him, but Jinu tells her that she already had saved him before disintegrating into ashes in front of her. With the power of Jinu and the fans' souls, HUNTR/X defeats the Saja Boys and the Demon King, as well as restores the Honmoon. At the end of the movie, Rumi is seen being more confident and open about her patterns, wearing more revealing clothes into front of others, including young fans and even going to the bathhouse with Mira and Zoey