I Entered the Dungeon Thirty Years Before Humans Did

If you can't die, get stronger. But he has to be killed first. Fang Zao II was born in a dungeon at the beginning. He was about to receive a lunch box. Before his death, he suddenly awakened his ability: [The unbeatable Xiaoqiang] Each death reduces the chance of dying by this method again by 0.1%, And there is a 20% chance of randomly receiving a buff related to the creature that killed him. Therefore, Fang Zao relied on his tenacious vitality to beat his opponent to death without hesitation. With this unreasonable ability, Fang Zao escaped from the dungeon, only to find that he was back in his first life. There is no him here, but there is a pair of ten-year-old twins who were abandoned for adoption - he took over directly and became the brother and father. In order to support his children, he joined the official dungeon resource recovery team, that is, the aftermath workers, commonly known as janitors. Although there is some danger, the salary is high! I thought my life would go on peacefully like this. It wasn't until the winter of a year later that the first random dungeon appeared, and the landing point was exactly the same - the elementary school of the two children. This time, he must face the cycle of killing for the people he protects.