(Through the Book) After Dressing up as the Younger Sister of the Male Protagonist of Shuangwen

Yun Xi traveled through time and became the younger sister of the male protagonist of an upgraded novel. Here, pet beasts are everywhere, including the blood-red Skeleton King with god-level bloodline, the golden dragon with its wings spread to cover the sky and the earth, and the ordinary green silkworm that evolves into the top-level moon butterfly... And the beast master is the profession that everyone desires. As a general rule for male protagonists in cool stories, the male protagonist Yun Yu's parents died, he was born a loser, and his mental strength is so weak that he has almost no energy. In the early stage, he was looked down upon and belittled in various ways. On the contrary, in order to set off the male protagonist, Yun Xi is a beast-controlling genius with strong mental power. He awakened the innate skill [Life Qualification] at a young age. He can easily tell which beast has the highest qualifications and contracts the one with the best potential. However, Yun Xi knows that Yun Yu will awaken the top talent skill [Evolutionary Cultivation] at the age of eighteen. From then on, he will cheat in his life, constantly evolve the ordinary pet beasts in his hands, trample those who look down on him, and become a genius of his generation. As the male protagonist's younger sister, Yun Xi must of course follow her brother and work hard to become the strongest beast master under Yun Yu. ————— Yunyu is a time traveler. Since awakening the top talent skills, he has been leveling up and fighting monsters, constantly defeating the geniuses one after another. Among them was a handsome young man with silver-grey hair. He kept fighting with him, becoming more and more courageous the more he lost, never giving up. Yun Yu expressed his admiration for him in his heart. Until her sister hugged the boy tenderly and comforted him softly: "It doesn't matter, you are four years younger than my brother." Yun Yu was completely blown away. Note: I don't mainly write about feelings. Purpose: Struggle and Youth