Since the cooldown of his physical skills was high, Leon would have to level them up very slowly. However, despite the muscular pain, Leon wanted to use them more frequently because it was very cool.
"Do you know how I can learn those myself?" Leon asked. "Waiting for the cooldown time is a pain."
"No," Ilyana said.
"No... what?" Leon frowned. "You don't know, or you don't want to teach me?"
"I don't know, and I never got interested in learning that," Ilyana said. "It is fine if you use it just now and then."
"Heh... that is surprising," Leon rubbed his chin. "I thought you would know everything."
"Although I'm old, I don't know everything about every single fighting style," Ilyana said. "No one can know everything. Not even the harvesters that are much older than me know how to fight using their bodies or magic alone. If you try to become an all-round fighter, you won't reach the apex of neither."
Leon wasn't interested in that. He just wanted to kick the asses of the bastards who messed with him and wanted to mess with Earth even more. Regardless, Leon decided to follow Ilyana's advice again... to some extent. Since he already knew Stamina Manipulation, he was sure that with some training, he would know how to replicate those moves. It wouldn't be his primary goal, but it would be a good hobby... he was really in need of one. Soon, after Leon decided that, Ilyana talked to him once again using Telepathy.
"I have a job for you," Ilyana said. "This one is much easier, so you don't have to worry about failing again."
Leon didn't feel any contempt on Ilyana's words, but her choice of words made him imagine her looking at him as if she was showing a very annoying smile full of contempt. Regardless, every change of pace was welcome, so Leon headed toward Ilyana's castle without wasting time.
"A certain dungeon in a certain world us spawning a lot of mutant enemies," Ilyana said. "I want you to go there and deal with the problem without letting anyone notice you."
"Why?" Leon frowned.
"Because they need to think that the problem solved itself after several mutant monsters appeared," Ilyana explained. "It would be troublesome if they see a stranger solving their problems and get used to it."
"I mean... why do you want to help them?" Leon asked. "Even if I do that without being noticed, shouldn't they solve the problems themselves in order to grow stronger?"
"The current situation in that world will only escalate further if we leave them alone," Ilyana answered. " Mutant monsters appear when dungeon breaks happen too many times in the same dungeon. The mana of the area gets richer in mana too fast, and that causes the mutation of some monsters. Given that the mutant monsters are stronger, even if they are killed, their deaths will only increase the mana inside the dungeon... creating a never-ending circle and also accelerating the assimilation process of that world."
"You still didn't answer my question..." Leon said. "Why would you help the species of another world without reason?"
"I have a reason, they can be useful, that is why," Ilyana explained. "That world is on the second stage of assimilation, and something similar happened when it was on the first stage. They managed to solve the problem by luring the mutant monsters into a death zone. After that, they never let dungeon breaks happen so frequently."
"If that is the case, how come the dungeon breaks happened again?" Leon asked. "Unless..."
"Yes," Ilyana nodded. "Most likely, someone is causing the dungeon breaks... someone that unlike me, thinks that the people of that world will become a problem."
"A harvester..." Leon said.
"The chances are high, but I can't say for certain that that is the case," Ilyana closed her eyes.
In the end, Leon could only nod even though Ilyana's behavior was suspicious. Fortunately, he didn't have to overthink about it since it was a dirty job. The people he was going to help were strangers, but helping strangers wasn't a bad thing. Besides, he would decrease his debt a little.
"Before killing the beast, suck all their mana and then take their body to the place I will send you to," Ilyana said. "Don't let the body touch the land, or the planet will gain ownership over it."
Those were some strange rules. Most likely, Ilyana would transport the beast's corpses to her planet in order to prevent their mana from behind sucked by that planet. Ilyana probably knew why such a phenomenon happened, but Leon decided not to ask. He liked to keep things simple in his head, after all.
"Are you ready?" Ilyana asked. "Ah... you will need this."
Ilyana made a tome appear floating above her right hand. As expected, Leon hesitated in receiving that but considering it was a necessity for the job and he had to solve that problem as soon as possible. He had no other choice...
Congratulations! You have learned the skill: Invisibility.
Cost: 10 mana per second.
You obtained 01 status points.
Leon frowned when he received that notification. He just learned the spell that most male teenagers wished for at some moment in their youth. Despite the usefulness of that, Leon didn't feel even a little bit excited... it was all due to the curse that affected the holy sword.
"You can't use other spells while you keep that active," Ilyana said. "So, you should increase your recovery in order to be able to keep that skill active while you investigate that world."
As expected, Invisibility had some drawbacks. It was troublesome, but since Leon didn't allocate the status points that he obtained in the last few days, it wasn't that annoying.