The Almighty Summoner of the Fantasy City

Unknowingly, Liu Yang was reborn in a fantasy era a billion years later, and inexplicably obtained a summoning system that could summon all powerful powers. Super Saiyan, Pirate King, etc. Are all younger brothers who can be summoned at will, and their powers all become their own. Seemingly omnipotent, he is actually invincible. "You have to have fun in this world..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.