A system is disclosed which includes a walking assistance robot for assisting a smooth start of a user's action after standing up from a chair. A system according to an aspect of the present disclosure includes a walking assistance robot and an automatic elevation chair that moves a seating surface where a user sits. The automatic elevation chair detects a consciousness level of the user and transmits consciousness level information on the detected consciousness level of the user to the walking assistance robot via the network. The walking assistance robot, including a body and a rotor that moves the walking assistance robot, receives the consciousness level information via the network and controls resistance force to rotation of the rotor based on the received consciousness level information.