Feed Your Sister! A Little Brother's Sis-Con Training Plan

Lu Lintian had been a good-for-nothing since birth. He meant to push himself a little, but with no aptitude whatsoever, he decided to lie flat. Then he discovered that his biological sister, Lu Linxue, had heaven-defying aptitude and possessed both the Chaos Physique and the Supreme Physique, two forbidden physiques... Since he had no aptitude himself, a grand plan began to take shape in Lu Lintian's mind: he would raise his sister into the ultimate, invincible sister who would do anything for her little brother... Until one day, powerful enemies surrounded and attacked Lu Linxue. Her little brother, Lu Lintian, stepped in with overwhelming force... Lu Linxue: Is this really my good-for-nothing brother?