After an intense battle with Vervatista and his troops, Kai felt the need to improve his abilities even further. Days passed at the Brethening Academy, and Kai decided to learn the holy spirit technique for purification and summoning familiars.
In advanced magic class, Kai sits with his friends as their teacher, Professor Lenora, explains about holy spirit techniques.
"The holy spirit is an entity that has the power to purify souls trapped in darkness and to summon powerful familiars from other worlds," said Professor Lenora as she raised her hand and summoned a ball of light that shone brightly.
Kai watched intently, feeling that this was the key to strengthening himself and protecting his friends from greater threats in the future.
"Purification techniques are used to remove curses and free trapped souls," continued Professor Lenora. "While summoning a familiar requires extraordinary holy spirit power and often requires great sacrifice."
After class, Kai decides to train alone in the forest near the academy. With strong determination, he began to gather his energy and tried to summon the power of the holy spirit. As he focused, a large magic circle formed around him, glowing with incredible power.
"I have to succeed," Kai muttered, feeling his energy getting drained.
Suddenly, three huge figures emerged from the magic circle. They were the dashing Lord Demon, the powerful Arch Demon, and the graceful Greeter Demon. These demons are all extremely powerful familiars, usually only summoned by sacrificing thousands of souls.
"How could it be?" Kai muttered in surprise. "I didn't sacrifice anything."
Lord Demon stepped forward, his eyes shining with a warmth unusual for a creature like him. "We responded to your call not because of sacrifice, but because of the power of the pure holy spirit within you, Kai Kurenai."
Kai felt relieved but still confused. "But, why me?"
The Arch Demon answered, "You have the power granted by Kuraeza, one of the nine legendary monsters. Your power exceeds the limits of this world."
Greeter Demon added, "And with the power of the holy spirit, you can summon us without the need for soul sacrifice."
Kai felt proud but also aware of the great responsibility that now rested on his shoulders. He knows that with this power, he must protect the weak and fight the evil that threatens the world.
The next day in class, Kai's friends look at him in awe and a little fear.
"How can you summon three powerful demons without sacrifice?" asked a classmate, his voice full of curiosity.
Kai smiled weakly, still trying to understand everything that happened. "I don't know for sure, but I will use this power for good."
Professor Lenora, who heard this story, approached Kai and put her hand on Kai's shoulder. "Kai, with great power comes great responsibility. Make sure you use your power wisely."