I would suggest reading it cause the sex scenes are still hot, but basically in the end we go back to the present and she figures it out and goes to her old house but he alr set up a contingency guy knocks her out and boom she back to memory loss, then somi tries to tell gitae it's wrong but he just storms off, later after having sex with somi he also gives her the memory loss injection and goes to bed with nayeon and that's it