Responses

More spoilers:
She's now back although looking miserable in her jail cell. She's still evil enough to ruin Nok and Jaeshin's relationship. She told Nok about Jaeshin's role in his destiny (ghosts issue). That bitch is the worst :/ I don't know how Nok will react but I have faith in him. He's rational and wise. Hopefully Jaeshin will explain the context correctly so Nok won't blame him
After releasing the boy, Queen won't really get any backlash bc he didn't want revenge, but she's getting worse and worse anyway bc of the demon taking over her.
Meanwhile, Nok will summon the father of that asshole backstabber ex-friend of his regarding his betrayal with the cursed paintbrush, and tells Father he could have Backstabber and his whole family executed for treason, but he won't do that bc he knows Father is innocent. So he offers the compromise of stripping Backstabber off all his titles and banishing him somewhere far away (which is more generous than what he deserves imo).
But Backstabber is a stupid ass backstabber, and even after his father rips him a new one and arranges for him to be sent away, he talks back and decides to sneak out at night to meet the queen with another dude (I think it's her brother).
But remember the queen was getting worse and worse? Well, she's now resorting to cannibalism to recover her sanity, and when they arrive there, she attacks him and basically mauls him to death like a wild animal (WHICH HE DESERVES AND I CHEERED FOR THAT!).
She recovers her sanity and tells her brother to bring her son (Nok's brother), bc he's the perfect sacrifice as she's been raising him to take all the punishment meant to go to her.
When the little prince is locked up with her and crying and begging to be let out (poor thing), Nok and Jaeshin arrive and save him, and that Priestess ghost who's been helping Jaeshin puts an end to the demon, leaving only the queen alive and powerless. That's her revenge.
The guards arrive the next day and find the carnage in her room, with limbs everywhere, and she's imprisoned. There's a trial, where Nok is very dignified and even the little prince serves as witness against his mom.
In the end, Nok is seen overseeing the prince, who's very traumatized and wakes up crying. Jaeshin is with him as the cute little dog, enjoying pets on his lap.
Those are the next four chapters btw (89, 90, 91, 92).
Of course, that was not the end of the story, that's the end of the queen. I'm still waiting on next chapters.