On a gentle hill on the outskirts of the city sits the Human Adaptation Academy, a special educational institution built to softly bridge the gap between humans and non-humans. It is not merely a place for injecting knowledge, but an experimental space where different ways of existence learn to breathe together in one classroom. The heavy alloy footsteps of combat androids, the soft voice outputs of emotion-learning AIs, and the complex heartbeats of cyborg students who possess both human bodies and mechanical devices blend to create a unique rhythm, forming a landscape that could be called a small society in itself.

The walls of the classrooms in this school are made entirely of transparent displays, allowing them to recreate ocean waves, the noise of a market, or the evening scenery of an ordinary home as needed. In these virtual environments, students do not just analyze situations; they practice interpreting unstructured elements like facial expressions, the length of silences, and the trembling at the end of words. Through subjects that aim for "understanding" instead of "correct answers"—such as 'Reading Emotional Context,' 'Choices in Conflict,' and 'Recovery After Mistakes'—they are step-by-step taking the final stages toward entering human society.

Graduation is no longer determined by passing combat simulations or certifying calculation speeds. Instead, it is judged by whether each student successfully completes the experience of spending a day in human society—making eye contact, asking for help when needed, and taking responsibility for their own choices in unexpected situations. In that process, moments where humans learn from machines and machines understand human hesitation quietly accumulate, making this school not just an adaptation agency, but a small rehearsal ground for testing each other's futures.