Multiple female leads, crossover anime, no eunuch ending, protagonists lacking any true goodness or beauty.

While traveling through various anime worlds, Tetsuya Amano unexpectedly discovers that all the female protagonists have a treasure chest with a progress of 0% above their heads, which triggers his obsessive-compulsive disorder!

The key to open the box was actually on the male protagonist.

To control them and their lives.

Tearing apart Aki Tomoya's dignity and publicly humiliating Hikigaya Hachiman.

When Aki Tomoya knelt at his feet, when he treated the Service Club like a playground...

Embark on a journey of mystery to the world of Type-Moon! The Root, the Wizards, the Throne of Heroes, the Garden of Avalon, countless parallel worlds, and those dazzling beauties! Whether it's the furnace (Sakura Matou), the pump (Rin Tohsaka), the oven (Emerald), or the nail gun (Chiel), even the legendary vise, we'll conquer it all! Type-Moon Heavy Industries, you deserve it!

Due to an accident, Ye Ran was drawn into an extremely cruel cycle game.

Fortunately, the Sinful Enslavement System was awakened at the start, allowing the player to obtain various rewards by enslaving anime beauties.

Since then, while the reincarnators around me were still struggling and complaining about their own survival.

However, he embarked on a unique path of hunting beauties to become stronger!

You have successfully enslaved Kasumigaoka Utaha and received the reward "Eye of God".

You forcibly enslaved Enoshima Junko and received the reward "Geass".

You have successfully won Esdeath's submission, opening the Sinful Treasure Chest and receiving a Freeze-Freeze Fruit as a reward.

Zombie 100%, Demon Slayer, Dark Gathering, Fallout 4, Type-Moon, Honkai Impact...

As Ye Ran continued to hunt down beauties and grow stronger, one anime goddess after another joined his team.

Years later, when he stood atop countless multiverses, he was shocked to discover that he had long since left everyone far behind.

While obeying his master's orders to annul his engagement, An Buran awakened memories of his past life. He had transmigrated to a fantasy world of immortals and heroes, becoming a major villain! He possessed double pupils and a cousin with immortal bones, whom his mother might one day bring to him. He was inherently cold and indifferent to everyone, especially his sister An Buran, whom he treated harshly, beating and scolding her mercilessly! Even his mother's chosen child bride was treated like a servant, a prostitute, a slave. A pure egoist, he would stop at nothing for resources, even harming his own senior sister, causing her to lose her position as the chief disciple. ...In despair, he fortunately awakened a system. To pull back from the brink and survive, An Buran decided to fight against fate!