Dr. Sudou treats humanoids like they're already human, and the show never explains whether he's right or insane. Each episode reframes what you thought you understood about consciousness, suffering, and who deserves a cure. The ending refuses to resolve anything because that's the point: coexistence with artificial minds doesn't have an answer, only the weight of choosing anyway.
In a near-future where sentient humanoids walk freely among humans, society faces an unprecedented crisis. These artificial beings experience psychological breakdowns and unexplainable malfunctions that human medicine cannot address. Dr. Hikaru Sudou becomes their unlikely healer, operating in the shadows to provide treatment that official channels refuse to offer, risking his career and freedom in the process. When humanoids begin developing bizarre illnesses that blur the line between mechanical failure and genuine illness, Sudou finds himself trapped between two worlds. His clandestine work forces impossible choices: save his patients by any means necessary, or abandon them to an uncertain fate. As the diseases spread and authorities close in, he discovers that the line separating humanity from artificial life may be far thinner than anyone believed. The series questions what we owe to beings we created, whether consciousness demands compassion regardless of origin, and how far someone will go to protect the vulnerable. Sudou's dangerous gamble becomes a mirror reflecting society's refusal to acknowledge those it deems disposable.