The Lone SSS-Class Summoner

Briefly about The Lone SSS-Class Summoner manga:

Zhang Jie enters a parallel world where humans rely on the Magic Domain to fight monsters and become stronger to resist the invasion of demons from the Devil’s Cave. For the sake of his sister, Zhang Jie enters the magical realm as Asura.

The Lone SSS-Class Summoner manga.

And then suddenly awakens the strongest SSS level talent summoning ability! The higher the level of the summoning art, the more monsters you can summon and the more you can improve, it just defies the heavens!