I Asked the Beast to Be a Traveling Frog

This is a world where elves and humans coexist, and people with the talent to control beasts are called beast masters. Su Buping traveled through time and got his first beast: the foam frog. Then, he awakened the traveling frog system. So, go travel, Foam Frog, and let me see what goodies you can bring back. Skill machines that can teach elves skills, candies that improve elves' attributes, elemental stones that can upgrade elves... Oops, there are so many of these evolution stones that I can barely keep them at home. I don't have any special skills in controlling animals, I just let him go on trips often, and when he comes back he is invincible. ——The most powerful man in the world, Su Buping's quotations.