@Anya okay so basically the servant will bring back the main female lead, the original female lead died and now is possessed by Leila, in the last few chapters Penelope and Leila fight, Penelope wins, she marries callisto and becomes the empress.
Winter is the one who brings Ivonne back in the og timeline. However, after the "normal mode ends" he finds out that Ivonne is in fact Leila (the witch demon thing) and uses magic to turn back time so that Penelope can defeat Leila. He is the one who summoned the MC into Penelope's place. He does not remember it (I think he regains his memories at the end). In this timeline, Eclise, who is in love with Penelope (kinda obsessed really) finds Ivonne and brings her back so that the Duke and his family will let go of Penelope. Ivonne convinces him that Penelope could never see him as anything but a slave so he wants to make it so she has no choice but to accept him.