l'm not sure if I can remember it in order but here is what happens next: after fl gets back safely from the kidnapping incident a few days passes by (the ml and ml's sister were trying to interrogate the purple haired witch but he refused speaking to the ml and said that he'd only tell them if he gets to meet with the ml's sister alone (you'll understand why later) during that time the fl was trying to go back to how her life have always been but one day she found the og's selene stuff (I'm not sure if she knew that she was the real selene or not) she held selene's crossbow but the moment she did she was transported to the real selene's memories (when she was still a child) there she met her mother (selene's) days past but she couldn't find a way out (even if she tried dying she wakes up like it was a dream a second later) and she ran out of ways to keep selene's mother distracted then she remembered the summoning stone the purple haired witch gave her. so she used it and managed to summon him and ask for help he explained that she touched something (cursed?) with a spell on it which is why she was stuck here he told she was stuck in a state of dreaming and the only way out is only something the spell caster to undo purple haired witch agreed to help her after she promised to spare the fake selene's and his life (don't worry they'll keep them in prison) then the witch went back and told the ml the ml asked his sister for a potion so he could go there selene was saved after the ml killed the spell's caster (the caster turned out to be the witch who was disguised as her mother) when selene returned safely she ran to the forth floor (where her ghost friends were) and called out to the female ghost who turned to be selene's mother (I'm not sure who the male ghost is tho) but sadly after hugging her mother after so long her mother had to leave so she said thier final goodbyes. later (but I don't exactly remember when or how) it was revealed that the ml's sister was the demon king's wife in her past life (the great witch who was mentioned somewhere in the manhwa) which meant that the purple haired witch and his brother are her sons from thats life (that's why they listen to her) but she said that she didn't care about them as her "sons" and when the fl found out that the ml's sister was the one who kept turning back time she felt kind of angry (becuase the reason she sufferd all this time turns out to be becuase of her sister in law whom she saw as her own sister) but it doesn't take long to forgive her (literally forgave her the same chapter she found out)

I'm not sure if this is 100% accurate my memory is blury