These days, people living in big cities have so little knowledge about their next-door neighbors. This is a big factor that cuts relationships with people in the neighborhood, leading to arguments and many difficulties when having an emergency. To alleviate the problem, local special events and activities can be held to help residents get to know each other well. The first issue appears when people have to deal with an urgent situation. When a person suddenly has a serious accident at home, such as fainting or bleeding, it is challenging for them to get through it alone. Having someone living nearby to lift a hand can save a lot of time and effort and result in a better result. There used to be a case in which an old woman who was living at home alone one night suddenly realized a robber had just broken into her home. Fortunately, there was a family living opposite who saw the problem, immediately called the police, and helped catch the robber. Therefore, a serious situation can be ...