Traveled Through Time and Became a Security Guard

Brain storage When I was in my twenties, I actually traveled to the world of urban body training and became a grandfather who was over a hundred years old. Then he decided to become a school security guard, shouldering the heavy responsibility of protecting students. Wang Dazhuang, who clearly sticks to his post and strictly implements the school system, is faced with... Uncle Wang, my foot is crooked, please help me. Uncle Wang, the sun is too poisonous. Can you help me put on sunscreen? Uncle Wang, our dormitory is going to the beach. I'm afraid it won't be safe, so why don't you go with me? Even the beautiful teacher wants to give me a child? For the safety and health of the children and teachers, it seems that I have no choice but to sacrifice myself.