Elf: System? How could there be such fragrance as the champion sister?

Story of: Elf: System? How could there be such fragrance as the champion sister?Lin Pingan, a visitor from another world, traveled to the world of Pokémon. Like ordinary travelers, both his parents died.But the difference is that Lin Ping'an has a sister who is both talented and beautiful, and is also a champion sister who supports her younger brother."Xiao Anping, as the champion's brother, you can now have elves. Do you have any elves you want?" "Well, I think Xinye Miao is very good." The next day, the master-level Magic Mask Meow's elf egg appeared in front of Lin Ping'an's desk."Xiao Ping'an, are the recent cultivation resources enough?" "Emmm. Enough!" "No, you hesitated. Don't be polite to my sister. My sister will go and destroy two evil forces and use them as cultivation resources for you." Just when Lin Ping'an thought he was about to reach the top of his life with the help of his sister, a stupid system called the Elf Achievement System began to bind."Ding, a suitable host has been detected and is being bound..." "System? If that's all you can do, you'd better unbind it yourself!" How can the system be as good as the champion sister?The introduction is weak, so move on to the main text.