Fall in love with onions

Qin Tian accidentally crossed over, with a weak and sickly body, a damaged dantian, unable to cultivate qigong. Since he killed a chicken, he miraculously discovered that he could level up! "Sorry, Chicken Bro..." Qin Tian felt a bit reluctant. "C*ck-a-doodle-doo... C*ck-a-doodle..." The rooster seemed a bit scared. Leveling up by killing monsters, leveling up by killing people—what seemed unattainable to others, like an awe-inspiring sect master, was just a shiny big BOSS in his eyes... "I can level up, who should I fear?" When so-called geniuses hit a bottleneck, all I need to do is kill a few more demonic beasts. Of course, sect master, sect leader, and realm master... even better. For the path to my godhood, sacrifice your lives!