Immortal and Undying: I Battle Heaven, Earth, and All Living Beings

[Mental illness + unhinged protagonist + immortality + indestructibility + passion + comedy + binge eating + transmigration + no dithering, straight to the fight] This is not a wish-fulfillment novel, and it doesn't follow the usual formulas. Enter at your own risk! After transmigrating to another world, the unhinged young man Gu Changsheng gains an immortal, indestructible body. “What! There's a curfew tonight, and monsters are on the loose?” Gu Changsheng: “Bring me my butcher's knife!” “What! The monsters even eat children?” Gu Changsheng: “Bring me my butcher's knife!” Ever since Gu Changsheng killed a pig demon with a single swing in the middle of the night, he discovered that demon meat could strengthen his body. Soon, the demons in Qingtian County weren't enough to satisfy his appetite! With a knife in hand, what schemes or tricks could he possibly fear? And so, the unhinged Gu Changsheng takes his butcher's knife from Qingtian County all the way to the imperial capital, then cuts his way from the human realm to the demon realm... to the immortal realm... to the divine realm, without even blinking. “What! You want to know if my eyes are dry?” You'd better worry about whether your neck is tough enough!!! Though born like an ant, one should aspire to soar like a swan. Though life is as fragile as paper, the heart can remain unyielding. A true man born between heaven and earth cannot spend his life languishing beneath others. Let your dreams be your steed, and make the most of your youth. The future is uncertain, and either of us could be a dark horse! With fiery passion, press fearlessly onward, never letting even a grain of sand into your eyes! If heaven oppresses me, I'll fight heaven! If earth oppresses me, I'll destroy earth! If all beings oppress me, I'll cut them all down! Writing isn't easy, so please go easy on me. If it's not your cup of tea, feel free to move on. Thanks!