What kind of person was Luo Lan in the past? He could remain in bed in the stronghold without moving for three days straight and had led a comfortable life back in Stronghold 113. Basically, other than matters concerning the Qing Consortium's combat brigade that he led, there was nothing else that required his attention.
Based on what he said, his younger brother was around for everything. All Luo Lan needed to do was enjoy himself until the day he died.
But when Luo Lan started putting himself through this grueling training, everyone realized his innate willpower was very strong.
Zhou Qi had previously speculated that if the world of supernatural beings was really determined by their mental fortitude, then the higher that was, the greater their potential.