The Black and White Magic Knights
The last lesson from the teacher

Three years passed in the soul world from the time Kuzo trained there, and Kuzo spent his time just training and receiving lessons from Derion

Until one day Derion approached him and then said "Alright Kuzo now I'm done researching it, whether you can hold another form of magic energy or not in your body"

"really? Then how can I hold it or not inside my body?" Kuzo Said

"Yes, I can, but I'm still not sure, so let's try first how are you ready?" Derion

Agitated and somewhat afraid Kuzo asked his teacher "but what if I wasn't strong enough to hold him back and would instead make myself mock the teacher"

"You take it easy, because I advise you to try it so I have also made a solution about the problem. Later, for example, when the unification of the magic energy form and you are not strong enough to hold it, I will forcefully stop the unification by using the separation magic that I just managed to create" Derion replied to Kuzo

Kuzo was relieved and said "well teacher I believe you, so are we going to start trying now?"

"Alright let's start now, first we'll try to create a form of fire magic energy first, try to imagine as much detail as you know as you flow a form of white magic energy (creation) into the palm of your right hand, imagine the fire starting from the shape, color, and heat. And try to feel that that form of fire magic energy is in your palm" said Derion seriously

"Well teacher I'll try it" Kuzo said

Kuzo tried and he easily managed to make a fire in his right hand

"Good.it turns out that your three years of training in this world of souls are not in vain, you can learn so quickly. Now that this is the most dangerous part, the heart is the place where the magic energy forms are located so try to absorb the fire from your hands and slowly flow to your heart, remember not to collide with the black and white form of magic energy that is inside you if it collides you might explode immediately" said Derion very seriously

At the direction of the excellent Derion Kuzo managed to fuse a form of fire magic energy into his heart and stabilize the magic energy rotation within his body so as not to collide and explode "did I succeed?" Speak Kuzo with Irregular Breath

"good you did, now in your body there are three forms of magic energy, namely darkness, light and fire. For other forms of magic we will try it later, at this time we will rest first because you seem to be exhausted" said Derion

"Good teacher..." Kuzo said and then he sat down to rest

After they had enough rest, Derion invited Kuzo back "well, we'll get enough rest to get here. We'll proceed to create another form of magic energy"

"Well.." said Kuzo as he stood up.

Derion then said, "this second form of magic energy that you are going to create is a form of wind magic energy, just like before when you were making a form of fire magic energy you have to imagine it, and this time you're gonna have to imagine what the wind is like, you know, understand?"

Kuzo replied "understand the teacher.." firmly, but in his heart Kuzo said, Imagine the wind? How do I imagine it? How does the wind form?' with confusion

"All right, let's start..." Derion

Kuzo immediately tried it, but unexpectedly at the time of making the wind magic energy form took place Kuzo slowly felt the sensation of the wind blowing around him, and suddenly in Kuzo's right palm formed a flow of wind magic

"it's good that you've managed to create a form of wind magic energy, now just put it and put it together into your heart like before" said Derion

"Good..." Kuzo Said

Kuzo begins to fuse a form of wind magic energy into his heart, but something unexpected suddenly happens to Kuzo, who is, Kuzo shouted as he felt his heart ache and like it was about to explode. Seeing that Derion did not stay still, he immediately used the separation magic he made and canceled the unification of the wind magic energy form into Kuzo's heart, as a result Kuzo fainted

After Kuzo regained consciousness, he asked Derion, who was next to him, "teacher, what is really going on, did I fail to bring the wind magic energy into my body?"

Derion also explained what really happened to him "Kuzo seems like the thing that made you fail this time is because the amount of your magic energy is still too little, even if you have a special body but if you lack the magic energy to hold and stabilize the magic energy form rotation in your body, you will make your heart ache and then explode"

"for now you can't add any other form of magic energy to your body, but later on if your magic energy has increased then you can add another form of magic energy into that body" said Derion

"Well...great, but how is my teacher able to increase the amount of magic energy in my body?" Ask Kuzo

"Actually the amount of magic energy can bind just by following the development of the body and practicing hard, but I will tell you a secret. Actually you can increase your magic energy faster by eating the cores of monsters" said Derion

"What's? Eating monster cores, is it harmless?" Kuzo Said

"Yes, monster cores are indeed dangerous because they are very poisonous and can directly make the ones eating them directly into the afterlife, once someone tried to purify it to remove the poison but when it was purified the magic energy inside the monster cores also disappeared, which is why humans did not eat it and use the cores to make magic items, as well, but you're different from Kuzo according to my observations over the last three years, your special body can purify the poison from the core so I believe that you can absorb the magic energy in a core without being exposed to the effects of the poison, and that way you'll be able to increase the amount of your magic energy quickly" said Derion

"But teacher, isn't getting monster cores going to be a bit difficult?" Kuzo Said

"It's a little hard to get, but it's worth what you're going to get: a monster core that can add up to your magic energy quickly" said Derion

"Alright teacher... students understand" said Kuzo.

After that, Derion left Kuzo, and a few days passed, and Derion returned to meet Kuzo again

"alright...Kuzo looks like you've learned everything I know, so it's time to go back and see that Elf girl, but before you get back I'll give you a warning first, that is, don't use your black and white form of magic energy, if you use it and someone knows I'm afraid something bad will happen to you, also use the fire magic energy form alone to trick the people around you for now and not forget to use it neatly when you use magic so that others do not make things difficult for you. Then to help you I will give you a gift that is a necklace that can seal magical energy forms, so if there's someone trying to identify you they won't know if you have any other form of magic energy in your body" Derion said, giving Kuzo his necklace

"Thank you teacher and thank you for your teachings during these three years" Kuzo said, bowing to Derion

"Haa.haa.haa..even if your body does not grow in this world of the soul, but your attitude and behavior is no longer like a child. Maybe you'll be a precocious child haaa.haaa.haaa" said Derion.

"This is all thanks to the teachings of the teacher during these three years" Kuzo said

"All right, you, I'm going to get you back now to your body and also I'm telling you that after this I'm going to disappear so automatically the barrier protecting you out there will also disappear with me so be careful" said Derion

"Will the teacher disappear?" Kuzo said somewhat shouting

"Didn't I say I have regrets about not having an heir, and now I have you so I can leave without regrets. But I'll always be watching you from up there, so don't disappoint your teacher Kuzo" Derion said with his body starting to see through

"Alright my teacher will definitely not let you down" Kuzo said

Later, Derion returns Kuzo to his body. Kuzo finally regained consciousness and the shining stone that protected the surroundings also began to lose its light which signified that Derion had also left

Serina who saw Kuzo was so happy and immediately hugged him while saying "Sister Kuzo you finally wake up, I'm so scared"

Kuzo immediately asked Serina "Serina how long have I fainted?"

"I don't know, but it's probably about six to seven hours" Serina replied

'really, I was in the soul world for three years and only spent a few hours here' Kuzo said in his heart

After the barrier protecting them disappeared, Kuzo immediately stood up. What will Kuzo do next?

Wait for the continuation of the story