Soichiro Aizen Von Leize, a production worker from the 21st century, finds himself reincarnated in a world of ancient beasts and powerful summoners. He has a peculiar affinity for the ancient beasts, and can only form contracts with them. Banished from the divine realm, Soichiro must learn to survive and thrive in a harsh new environment. With the help of a pocket dimension, where he can cultivate and summon the ancient beasts through a gate that connects to the divine realm, Soichiro sets out to prove his worth as a summoner. He faces challenges and obstacles, including bandits and fierce beasts, but with the help of his ancient beasts, he rises to become one of the strongest summoners in the land. Will Soichiro be able to overcome the odds and secure his place among the elite summoners of the Claw Dynasty, or will he fall to the powerful ancient beasts that roam the land? Join Soichiro on his journey of discovery, power and adventure as he fights to become the ultimate summoner in a world of ancient beasts, elemental animals and powerful summoners