It is an extremely sweet story about "pain" and "healing". Bai Feng, who suffers from a rare "anti-tactile sensitivity", will cause severe pain when touched; while Lu Chen, who has "tactile synesthesia", will be overwhelmed by the emotional memories of others. When they accidentally touched each other on the first day of school - her pain miraculously disappeared and his world became quiet for the first time.
Starting from a "medical symbiosis contract", the two people who were forced to bind gradually discovered that the other person was the only exception in their lives. He fought against the whole world for her, and she dropped all her defenses for him. Amid conspiracies and crises, this relationship that began as "therapy" evolved into a life-or-death dependence that "must be you".
When everyone wants to separate them, they clasp their fingers: "Either live together or die together." This is not a story about healing, but a two-way redemption - your heartbeat is my only sedative, and my touch is your exclusive painkiller. From school uniforms to wedding dresses, from pain to deep love, they have only one contract: in this life, the next life, and eternity, they will only be each other's medicine.
