Part-Time Beast Tamer

When others contract spirit beasts, they start with ten, and geniuses go up to fifteen or more. After Guyan Muchan's test, the testing stone clearly showed five slots—an unprecedented "part-time waste" in the sect's history. Before the laughter died down, an ancient beast broke free from its seal, and the elders knelt in a row. Guyan Muchan casually crushed the most useless Greenfeather Sparrow beast token, and one became two, two became four, four became sixteen... In the blink of an eye, half the mountain was covered with sparrows. "You call this part-time?" At the inner sect competition, a genius disciple released twelve Flame Wolves, looking fierce. Guyan Muchan released two Greenfeather Sparrows and one Mud Frog, and the audience laughed their heads off: "Sparrows and a frog? Playing whack-a-mole?" Ten breaths later, the sky was filled with sparrows blocking the sun, and the ground was covered in mud trapping the wolves. The genius knelt in the mud and asked, "How many do you have?" Guyan Muchan counted on his fingers: "Yesterday it was a million. Today? You guess." The arithmetic maniac Zhao Xiaosuan from the next courtyard smashed his abacus: "Stop counting, his beast count grows exponentially—on the first day it's one cent, on the thirtieth day it can buy your entire family for eighteen generations!" Others rely on numbers to crush, he relies on math. Part-time? No, he just hasn't started trying yet. — Description from novelcodex.org