Shen Nian is a "genetic blank slate" without mutant abilities, but has a unique physique - where she exists, all out-of-control mutants will return to stability.
That night, she witnessed an intruder being "disassembled" into basic substances in front of her eyes in the archives room. The woman who took action was Shen Jing, an S-class mutant who was cold, powerful, and never allowed anything to escape her control. Shen Jing did not kill her, but took out a "Special Personnel Custody Agreement".
"You need someone who will never leave you. That person is me."
After the agreement came into effect, Shen Nian lived in Shen Jing's cage: monitoring, positioning, and arranged daily life. But as the "adopted sister" Shen Cheng uncovered the past with milk tea and an artificial lake, the memory reader Pei Shu revealed the truth about the "Adam Project", and the sound wave controller Lu Yixian fell asleep peacefully beside her for the first time - she gradually discovered that she was not the only one being controlled. Those powerful "masters" also rely on her in their own ways.
When the "resonance" in her body begins to awaken, outside forces take notice. From "stabilizer" to "tuner", Shen Nian finally understood: being needed does not mean being consumed.
Concept: Needing and being needed are symbiotic.