Elf: Evolve into Battlegreymon at the Beginning!

I am Zhao Qian. This year I contracted a bronze-level elf, referred to as the "Waste Elf" I thought that I had no chance to be an animal trainer and had to live as a social animal. But fortunately, I have awakened the elf evolution system and can choose any elf to evolve and become stronger. So, while others were slowly practicing with the contract elves... My contracted elf has evolved to: Fight Greymon! Arceus! Kaido! Skin God! General Thunder! Jiuhaha! … It seems that there is something else among the elves contracted. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.