My Old Class Is Invincible

Xiao Ji traveled through time and space to an elf world. In this world, his father was the champion of China, his mother was a world-famous elf doctor, and he himself obtained an ordinary system. On his birthday, his father gave him his first elf, which turned out to be the quasi-god Yukila, and it was also the world's first heterochromatic quasi-god. How should Xiao Ji use his system to become the world's first world champion. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.