517 Chapter 515

When Leon checked his skill list, he noticed that his summoning skills grew a lot while he was on Earth. That being said, Ilyana's Mud Golems reached level five hundred when his own monsters didn't level up, not even one hundred levels. So, Leon couldn't get ahead of himself.

Since Leon was really looking forward to learning how to build useful things, he decided to train his skills just by keeping his spirits materialized. Now and then, he would have to stop and create some mana liquid, but he felt quite relaxed while doing that in between his study sessions.

"I never thought you were a bookworm," Celsius said.

"It is kind of surprising that humans can read books for so long without getting bored," Sylph said.

"I'm just reading and keeping reading because I have a goal," Leon said, a bit annoyed. "And because I don't understand anything that is written here," Leon said.