Virtual Invasion of Reality: Ouhuang's Extraordinary Souvenirs

My pet lost contact, but I became European. "Ding, your pet sent you an extraordinary souvenir, the Black Armor of Fear." "Ding, your pet sent you an extraordinary souvenir, a first-generation divine body source liquid." "Ding, your pet sent you an extraordinary souvenir, the judgment angel Kyle." … In the twenty-fifth century, games have invaded reality. Every once in a while, millions of mutant beasts in the game will flood into the real world... When the human population dropped sharply from 20 billion to 2 billion, a "travel mark" like a frog head began to appear on the living creatures in the real world. Humans only need to sign contracts with animals, birds, fish, and insects that bear the imprint of the traveling frog. These animals will become your traveling beasts and travel to the game world. When the travel beast ends its journey, it will bring extraordinary souvenirs in the game. These souvenirs are likely to be virtual weapons, armors, props, medicines, training books, some kind of advanced technology blueprints, talent cards, mysterious fruits, pet eggs... Or even angels, succubi, flower elves, goblins, dragons in the game world. Of course, if you are unlucky, your travel beast may only bring you a few leaves or a stone...