He is the most humble ordinary person in the city, living in a dilapidated rental house and working a low-level job that anyone can do. No one knows that he was once a legend in the underground world, a being who terrified countless forces. For some unknown reason, he chose to hide his edge and accept to be a mortal. However, when the peaceful life is broken, when former enemies or new threats come to the door, this sleeping "tiger" has to open his eyes. Pretend to be a pig and eat the tiger? No, he just wanted to live a normal life, but his strength didn't allow it. See how he maintains the daily life of an "ordinary person" in the ever-changing city, while calmly solving troubles that are not long-sighted and causing hidden waves.