Elf's Alliance System

[Full name of this book: Elf's My League of Legends System] After Ye Lin went to school, he found that his friend who had been playing with him since childhood took out the elf ball from nowhere, and after opening it, the elf actually came out. The moment he had the elf, the golden finger was activated. Note: I hope all summoners and trainers will support me. I can't help but take a look at the introduction.