Become Invincible Starting from the Contract Devil

Luo Fan was reborn in the world of summoners. The only way to practice and become stronger was to contract and cultivate powerful contract beasts. Luo Fan: "System, I also want to make a contract with a monster!" System: "Master, you have a more powerful demon waiting for you to summon a contract." Luo Fan: "What kind of demon?" System: "The kind that lets you beat anyone you don't like!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.