I Level Up When I Make My Wives Happy - Chapter 16. A Worried Wife.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Lin Fan awakens to a world where chaos reigns, stripped of family, status, and safety. But within the turmoil, he discovers a powerful secret—the Beast Abilities system in his mind.With every threat he eliminates, he earns vengeance points, enabling him to level up his physiques.From the humble Wild Rabbit’s ability—[Rabbit's Hearing], [Swift Foot], [Magnificent Leap]—to the ruthless strength of the Wolf—[Hunter Instincts], [Iron Claws], [Leader of the Pack]—and the Ape’s raw power—[Climb Trees], [Strong Arms], [Inhale Qi]—Lin Fan hones his skills with every battle.Years later, as the feared grand master of a prestigious sect, he looks back in wonder. Who would have believed that his rise to greatness began with the unassuming gifts of a wild rabbit.

Zhou Donghuang, a man from the Earth, is able to destroy any planet in the universe without lifting a finger. His supreme will can sweep across the vast cosmos in the blink of an eye. And his immortal spirit can depart from his body and wander around the universe!

Starting from Hunter, Becoming a God at Level 100At level one, each attribute point increases by 1; at level two, each attribute point increases by 2; at level three, by 4…and at level ten, by 512.With every level, all attributes double. But at level 100, will he still be human?Lorraine wakes up to find himself transported into the world of Hunter x Hunter.Good news: he’s crossed over!Bad news: it’s a complete immersion.Good news: he has a system!Bad news: leveling up requires physical training.Good news: the system is powerful! Each level doubles his attributes, and at level 100, he’s granted godhood!Bad news: with each level, the experience needed also doubles.Thus, in the boundless worlds of existence, Lorraine embarks on his endless path to ascension.