A Hentai System in the World of Danmachi - Chapter 133 - 132 - Perverted idiots.

In the middle of a deserted island, a small boy wakes up with two sets of memories: one from his few years of life and the other from a man who lived to adulthood and achieved great things. When he least expected it, a powerful master appeared on the island and took him in as a disciple, revealing a shocking fact: magic exists in that world, and, thanks to it, humanity managed to conquer the galaxy.

As a wandering soul trapped in endless cycles of reincarnations, Claus must decide what to do in his current life.

Ruan Yingyin is a silver hamster who inexplicably transmigrated into the novel 《After the rebirth of the villain》she had read.

The villain Jiang Xingyuan had a girlfriend named Ruan Yingyin in his previous life, but Ruan Yingyin later betrayed him, causing Jiang Xingyuan to go bankrupt, and finally ran away with money.

Jiang Xingyuan’s ending in the novel was miserable. He regressed back to high school and retaliated against Ruan Yingyin. Ruan Yingyin’s ending was much more miserable than Jiang Xing Yuan.

After remembering everything, Ruan Yingyin: As a silver hamster essence who transmigrated into the book, I just want to concentrate on studies. QAQ

Ruan Yingyin felt that she had to study hard to catch up with her classmates. But when the results came out, she was the first.

Ruan Yingyin felt that she could not sprint, but when she ran, she crossed the finish line first.

Ruan Yingyin felt that she wasn’t good at singing. As a result, at the school party, a small video of her singing was posted on the Internet, instantly gaining countless fans. Even people from the recording company came to invite her to debut as an idol…

The villain who bullied her at first, he stepped on her chocolate, kicked her stool, and forced her to eat mustard, finally, hugged her tightly in his arms and whispered to her, “baby, help me…”

- Description from Novelupdates

Wealthy, powerful and handsome; Gu Jingze is the cream of the crop in the entire country. Every guy wants to be him and every girl wants to be with him. His life is perfect… except that he has one tiny secret that keeps him from getting close to any woman—apparent impotency.