HUGE SPOILER
mc will die and regress again and again because of castor. Before the cycle of her regress/death, the 4th prince, Amor(the prince in bed with blue mint hair) gave her a letter, telling her to act like a clown because Castor always makes his decision depending whether it's interesting/fun or not. So mc had to act like a dumb naive girl and castor finally let her go after series of death,before letting her go, he injured one of her maid,he stabbed her then he left. Mc was traumatized and always had nightmares and also was broken. Her brothers and her maids and the knight Ray were worried because they didn't know what happened between her and castor(according to their pov, they don't know she regress again and again and got killed again and again, so basically to them, castor just visited once and after the meeting mc was depressed). mc and 4th prince Amor became comrades and started to care about each other little by little. U can read the novel if you want to know more.
Thank you dearest
Can someone spoil everything for me cuz I’m nosy lol ty