The main function for normal chair is for sitting purpose and its need various of chairs for various of function. In this invention, the chair for work, exercise and relax is hybrid to have three main function in a single chair. The chair consist three main parts; the backbone as main structure, head support and central control of mode and also install (removable) with leg paddle. Upper leg to support the sitting area and lower leg act as full support to chair and stabilizer. Mode 1 named as Work mode (W mode) is suitable for working purpose at office table and at the same time exercise work can do for all of modes. Mode 2 named as Exercise mode (E mode) is special design to have more comfortable to for exercise purpose. Mode 3 named as Relax mode (R mode) is for relaxing activities such as watching television, chatting with some one, reading and so on. The leg paddle is design to be removable for friendly user. By introduced this WERCHAIR hope to assist users more enjoy working at office/house, more healthy, do two work at the same time and avoid from obesity problem.