Today, wearable devices, that can constantly support us by being worn on a daily basis, are gathering attention. In contrast, although we can also find an increase of personal robots in daily life, "wearable robots" are not so prevalent.We developed a wearable robot as a partner, that moves on the human body autonomously. As daily support, the robot has an application to correct wearers' sitting posture. It estimates wearers' body state from some sensors, and if it perceives wearers' bad posture or habit, points them out by moving to a region of the problem directly. We may be able to make use of it, not only to correct our posture or bad habit, but especially, to train children.

Today, wearable devices such as Google Glass [1] and SmartWatch[2] are gathering attention. These devices can constantly support us by being worn on a daily basis. In contrast, although we can also find an increase of personal robots in daily life, "wearable robots" are not so prevalent.We focus on wearable robots and the "fixed" points on which they are worn. We believe that they can provide more continuous and suitable support in a variety of ways by moving automatically on our bodies. Therefore, we propose a daily support system with a wearable robot that moves on the body, and we developed a small prototype robot that can move on a rail fixed on a belt worn on the human body.