In the next few days, Leo spent his time quietly. Apart from going to school and playing with Issei, most of his time was spent practicing magic and improving his control over the dark matter. At first, he thought of continuing to recreate skills from other NNT characters, but since he had a lot to improve in the use of Full Counter, he decided to take it easy and practice until Serafall finds someone to fight with.

Who would have thought Serafall would call him after half a month... And at the time, he was upset about Serafall's proposal.

"Why am I supposed to do this?" Looking at the documents Serafall gave him, Leo frowned. When he asked her to find someone to fight with, he was sure she would find some servant or even some stray devil. But somehow, he did not expect the opponent Serafall would find.

"My proposal is very good." Satisfied, Serafall exclaimed: "Ever since you asked me to find you, someone to fight with, this is the best option! Not only will you be able to face low-class devils, but also a middle-class devil!

"No, this is too much! I wanted an opponent, not a whole faction! And what about this faction of light devils? This is beyond simple combat!" Leo left the papers on the table and looked at Serafall with a resentful look.

The devils of light. A faction of devils conformed by several rebel clans which supported the previous Maou who after their defeat hid and began to gather forces to oppose the current Maou. After several years of hiding and gathering forces, they began to cause several conflicts and problems with the anti-Maou faction.

At first, they only sought support from the various factions, but after a while, it was discovered that they were trying to develop a method for devils to be immune to the effects imposed by the biblical god. They began experimenting with stray devils and human devils, but once discovered they moved to the human world where their location was hitherto unknown.

"You don't have to act like this. It's just a branch of the faction, plus they're just lower class devils, oh and the leader, even if he's middle class, you don't have to worry".

It wasn't that Leo hadn't thought of this before, but... "They may be just lower-class devils and a middle-class leader, but I've never fought anyone."

"You'll have to trust yourself. The best process of learning is practice," replied Serafall.

Having said that, he collected the documents and quickly passed them on to Serafall. As for Serafall, since she was not willing to let him go, she collected the papers and handed them to him again.

"Don't be a coward... Your magic capacity is terrifying, you have good control and you don't even need a magic circle to use magic so you don't have to worry. If something goes wrong you just have to use the dark matter and I'm sure you'll be done with them in less than a second."

"It's not that I don't want to, just..."

"Leave the excuses!" Interrupts Serafall irritated. Looking at Leo she says: "It won't just be you, various factions of the devil have been intimidated by them. I will go and face the main force so you don't have to worry about anything else, just take this as training.

At Serafall's insistence, Leo surrenders and decides to follow his plan.

"I'll go... Oh, I don't want other factions to know about this."

"Yes, they won't know. I'll put a barrier around it so no one will bother you and remember, don't get too complicated and finish quickly because once I put the barrier in place, I'll be busy dealing with the main force.

"All right."

Once the conversation is over, Serafall leaves to make the preparations. Seeing Serafall disappear, Leo goes to train.