looking for a manwha

i have no idea if i hallucinated or something, but I remember reading a manwha where mc has a crush on ml but they discover that ml is into bdsm and that ml a sadist. mc lies ml saying that they're a masochist and that they have sexual experience in order to have sex with ml, then they become bdsm partners. mc is actually 100% vanilla but endure it because they're in love with ml