The Genius System Without Equal - Chapter 33: A Heavy Thrust

Bruno Hornes' parents disappeared in a strange way, leaving behind a weird contract.He can trade anything with it...Money, talent, Insight, even identity and fate.So Bruno sells wealth to the poor, buys their health, then sells the health to the sick, buys their Insight.He keeps the Insight for himself, and he doesn't care about the rest.Bruno buys the skills of hundreds of knights, and becomes a powerful person.He trades with a trapped god for freedom, buys his loyalty...He works hard, but it's too slow.He needs a secret group, a middleman.He can help others trade anything, just by taking a little bit.Over time, at the crossroads where the shadow moon hangs low, members never say his name.They only call him “the Covenant Weaver” or “the Scale Lord.”When both sides wanted the same thing, he would appear. Sometimes he was a graceful gentleman with a golden cane. Sometimes he was a crow with one eye glowing golden. Most of the time, he sat on a throne that reached a million meters high...

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Kusumi Chiharu gets a message one day that he has been selected as a Monster Tamer, and he is prompted to select his first partner. He thinks little of the message until he receives a giant package the following day. He assumes it’s the porn books he ordered, but the huge box ends up containing the unconscious body of a near-naked girl! She’s a ghoul named Zonmi, who intends to fight beside him as his partner.

However, it turns out that other hot girls at his mostly-male high school are also magical entities, and Zonmi may not be the only one who wants to fight by his side!

“He is the entertainment king who is in charge of everything. Been single for years, he had zero scandal. One day, a woman and a girl turned his life upside down.