This is a special activity for two people. According to the query of Health Foot Massage Network, the Double Zen in Liangzi, China is a special activity for two people. Zen means harmony between man and nature, recuperation is disease prevention, kidney is the source of life, and essential oil can eliminate fatigue. Combined with Zen theory, supplemented by oil pressure and operated by two people, it has the functions of warming kidney and benefiting qi, strengthening waist and strengthening kidney, improving mental stress and relieving emotions.