The Original Body refers to the previous soul of Qin Jin-Nian's body before the time traveler took over. He was congenitally deficient because his mother experienced a Blood Moon while pregnant and was tainted by Abyssal Aura, which passed to him. As a result, he was weak and sickly, often falling ill. His vitality and mental strength were very low (4.23 and 6.15), making it impossible for him to cultivate or exercise normally. He had a dull and taciturn personality, had no friends at school, and was considered a failure. He persisted in meditation but could not improve. This original soul is essentially replaced by the transmigrator, but his background shapes the new Qin Jin-Nian's starting point.
