A technique that is part the restorative arts known as "So". Sei absorbs a huge influx of ambient ki temporarily fortifying a person’s cells revitalizing the body and negating the effects of deadly illnesses. Sei like all of the other So techniques is far from a cure to the Death Disease of the Mibu. It’s similar to the effects caused by consuming opium. It destroys the body’s pain receptors while forcibly stimulating the pleasure centers of the brain causing the person to experience a feeling of elation, relaxation and freedom from physical pain and mental disturbances.