LitRPG: I Developed A Magic Pet

*Ye Fann crossed over to another world in which strength and level were differentiated by the divine pets one owned. 
Becoming a beastmaster was almost everyone’s dream as this profession was respected and praised by the world. 
One day, following the obligations, Ye Fann had to summon a divine spirit pet, only to achieve an elf apprentice as his divine pet. 
Everyone mocked and ridiculed him for successfully summoning a pet which was basically worthless. 
However, no one knew that Ye Fann was destined to meet up with the God Pet Variation System which could practically make him and the little elf the strongest, the fiercest and the wildest; a figure who surpassed the mere honor of a beastmaster! 
As a transmigrator with a cheat system, let’s see how he stepped over the people who used to ridicule him and rose to the top!