MTL - Miss Gu and Miss Qu - Chapter 32

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

She transmigrated into the body of “Ancia”, the wife of the monstrous crown prince, “Blake” in a R-19 romance novel.

In the original story, Ancia committed suicide on her first day of marriage, leaving Blake with a huge trauma. But this time, Ancia didn’t have any intention of leaving him.

Blake is the second male lead in the original story. He is potrayed as a beast who posses’ an exquisite facade. Yet, right now, he behaved like a naive rabbit.

The only person who can remove the crown prince’s curse is the heroine, Diana. My only role is to keep this little boy from getting hurt and then step down in time. But…..

“Ancia, don’t leave me!”

This little rabbit keeps chasing me.

One will to create oceans. One will to summon the mulberry fields.

agreed. He thought they might just talk, have a few drinks, and that nothing significant would happen. However, she invited him to a hotel, and they spent the night together.The next morning, she told him it was just a one-night stand and that they would probably never meet again. She said goodbye and left. Ronan also decided to treat it like that.The next day, at his college's hosting club, Ronan was given the responsibility of hosting that year's annual function, where they had invited a singer.When Ronan looked up at the singer, he was shocked—it was the same woman he had spent the night with. After checking her history and social media, he formed an impression of her. Every picture she posted was in revealing clothes, bikinis, or almost nude outfits.He concluded that she was just a promiscuous woman, likely driven by lust, and that she had probably chosen to spend the night with him simply because she found him handsome.Understanding this, Ronan decided to focus on his work. That morning, she had made it clear that it was just a one-night stand and nothing more. He would treat it exactly that way and carry out his responsibilities.Protagonist has System---No NTRIt's Harem, with many girls but The Singer is Main Heroine.