Yolohy

Ethan wakes up expecting to see the walls of a hospital room—only to find a system message blinking in front of him:
[Ding! You have killed a green worm]
[Ding! Green worm has been added to your summoning list]

Anything he kills becomes his to command?!

Ethan finds himself in a brand new world filled with magic and power. Awakened with an SSS-ranked class, he rises to power by conquering everything that stands in his path. While other summoners struggle with their dozens, he gathers millions as his army. There is no limit to how much he can grow, but he quickly realizes that forbidden power doesn't come without consequences.

Limitless Summoner: Rise of the Soul God

"Okay," Ethan answered, his voice hoarse. He did not know why but felt like he was making a deal with the devil. However, there was no hesitation in his decision. What else was he supposed to do here?

Refuse a person who is actually willing to teach him something and not be completely useless? So far he had only relied on his summons to survive but he did not want to continue like that. He felt vulnerable despite an army standing in front of him to defend him.

Call him paranoid, but he could only relax if he had some power of his own. Some capabilities to take care of his enemies by himself.

Besides, he needed some time to think of a plan to hatch an escape route from this city. He once again had a target on his back and he was also not comfortable with this old woman's sudden interest in him.

Just will it and it's yours to command