<Korean TV Series NOW> ”Ghost Palace” EP15, Yuk Seong Jae (BTOB) and Bona (WJSN) prepare for the final battle = Viewership rating 9.4%, Synopsis and spoilers

※This article contains spoilers. In the SBS TV series "Ghost Palace" EP15 (viewership rating 9.4%), Gangcholi (Yuk Seong Jae) and Yoli (Kim Ji Yeon)
After the failure of the 19th century demon (Seo Do Yeong) to help the demon to attain nirvana, Gangcholi and Yeori prepare for the final battle.
He later realizes that the demon attacked the queen (Han Seo-eun) while the king was being threatened by his friend Kim Sang Ho, who had neutralised the power of the Gyeonggi stone (a stone that chases away demons).
The queen, already mortally wounded, finally dies, and the grief-stricken king orders Poongsan and his companions to be beheaded, ordering a bloody retaliation. Gangcholi explodes with rage again, calling Poongsan "God."
Aren't you afraid of the punishment game that will come your way?" However, Pungsan instead left a terrifying warning that Yo-ri would soon face death as well.
Meanwhile, Poongsan's ominous teaser never left Gangcholi's mind.
Teyori was deeply troubled by the fact that the only way to send the demon to rest without extinguishing Ganchori's luminous orb was to risk his life to summon the Grim Reaper who would take away the ghost of the burned dead.
Feeling sorry for her son Gab (Yuk Seong Jae in a dual role), Yo-ri distances herself from him, but tells Yong-geum (Cha Cheong-hwa), who treasures the gift she gave him, "Humans are boring.
"Although they did unpleasant things at times, they also had beautiful sides. That must be because mothers like you loved their children," he said, quietly comforting her.
At this time, Yori finds traces of the lily of the valley flowers that Gangcholi had taken out, and learns from the monk Ga-seop (Lee Won Jeong) that Gangcholi is the eight-foot demon.
He was deeply shocked to learn that she had decided to use up all her luminous gems to fight him.