Starting with a Slime, I Developed a Wanwei Lord

Overnight, Blue Star was covered by the game system, monsters descended, dungeons opened, and survivors awakened their professions and abilities. The world has become an apocalyptic wasteland, but it is also full of opportunities. Protagonist ability: [Contract Summoner]. Initially, only weak creatures can be summoned, but its core abilities lie in [Infinite Growth] and [Bloodline Purification/Mutation]. The protagonist can make the summons evolve and become stronger through feeding, training, sacrifice, fusion, etc., And even break through species restrictions and obtain unique abilities. The summons share growth with the protagonist, and the protagonist's strength largely depends on the cultivation results of the summons.