Fixten

In a world where summoners wield the power to call forth vampires, elves, angels, demons, and all humanoid creatures from across the realms, Nathan found himself unable to summon beings except from beasts. 

However, those beasts are not ordinary beasts. They are divine beings who once stood at the same level, if not higher, than the legendary creatures the world ever knew. 

Casting his gaze to the left, Nathan sees numerous summoners accompanied by the likes of demon kings, archangels, vampire progenitors, and other legendary beings. Turning to the right, a massive army of alien symbiotes is waiting to attack. 

There was no fear in his eyes, because standing on his left is a majestic wolf who managed to kill a god, the legendary eight-headed serpent coils on his right, above him is the bird who is glowing like the sun, and behind him is a dragon that once gnawed the roots of the world tree. 

“Let the war begin.”

Summoners War: Only I Summoned Divine Beasts

"I'm back!" Nathan opened the door, finding Selena teaching Serafina.

"Oh!" Selena turned to Nathan. "Are you done with your matter?"

"Yep! Look. I have a souvenir for you." Nathan showed a bag.

"Souvenir?" Selena raised her eyebrows. She grabbed the bag while asking, "What did you buy?"

When she opened the bag, she was startled to see several mature class cores.

"I got them from the new principal. You should use those cores to get stronger, Selena. With your absorption rate, you should get more than 10,000 Ena from four mature class cores, right?"

"Are you sure about this? You need cores more than me."

"Don't worry. I have gotten my share. Besides, this vacation is my idea, so I'm responsible for the time we spend here, which can be spent on a mission."

Selena looked at the bag for a moment before nodding her head. "Alright. I will take this then. Thanks."

Selena's Advice (Bonus)