If you don’t remain pure, you’ll be cursed…?! I opened my eyes underwater and saw splendid, historical palace-style buildings. There’s no doubt—I’ve possessed someone inside a story! And since it’s the genre I love, I know all the rules very well! But wait… I thought I had fallen into an R-rated fantasy, yet if you ★do that★… you get cursed?! In this ridiculous situation, I’m supposed to make the sub male lead’s love come true?! Will I be able to succeed in this mission...?