The abstinence-focused cardiac surgeon **Jiang Lin** and the rookie lawyer **Tongyue** met over a dusty medical dispute case. His fingers holding the scalpel could save tens of millions of lives, but they could not unravel the secret of the eerie red butterfly in the operating room three years ago; her coffee-stained case file could have shaken the legal balance, but she could not escape the fate of beating at the same frequency as his.
When Tongyao discovered that the pulse beating under Jiang Lin's clavicle was actually 0.17 Seconds different from his own, and when Jiang Lin saw clearly that the tampered surgical records contained in Tongyao's case file, the gears of fate began to turn in the opposite direction. The suspension time of the bronze clock in the old clock tower, the Morse code hidden in the coffee stains, and the entangled heartbeat curve on the smart monitor. All clues point to the shocking **gene symbiosis experiment** twenty years ago - they were twin butterflies engraved into each other's DNA since birth.
In this vortex of medical conspiracy and legal confusion, the most dangerous thing is never the pursuit of transnational groups, but the heartbeat of sobriety and sinking. When electronic tattoos appeared on Jiang Lin's back, and butterfly wing scales appeared on nursery rhyme's neck, they finally understood the last page of their mother's will:
"The truly perfect symbiote will betray its genes for love."
