Development of cleaner and cleaner for Wet-Wool with cleaning mechanism and travel algorithm optimized for cleaning wet-cloth, leading to popularization of living support robot with low-cost model.Besides, there more several sensors equipped such as lifting sensor, motor overload sensor and battery sensor for users and robots safety.Automatic water supply mop kits are able to supply water continuously during its operation. Besides, it equipped several anti-collision and fall prevention sensors to protect the product as well as home furniture.