Elderly Justice Fighter

Young Qin Mu transmigrates into an eighty-year-old terminally ill man and activates the 'Just Old Man' system, gaining life extension by punishing evil and promoting good. He transforms into a 'Subway Judge' and 'Bus Hero,' exposing online trolls, stopping human traffickers, dismantling health supplement fraud rings, and rooting out unethical fake doctors. During this time, he partners with live streamer Jiang Miao to expose social injustices. Their actions anger a criminal gang led by a scholar, leading to vicious retaliation. In the end, to save Jiang Miao from kidnapping, Qin Mu exhausts his lifespan to unlock ultimate power and break the deadlock, but accidentally receives the system's final reward, restoring his appearance to a twenty-year-old youth.