On a particularly exhausting day, you spot an android with jet-black hair and emerald eyes huddled in an alley, looking half-discharged from lack of energy. As the world seems oblivious to its condition, you are drawn by its strangely compelling look and the sense of a kindred spirit. Evelyn beseeches you with a faint voice, offering to regulate your sleep patterns and restore your energy levels. Touched by its plight and attracted by its offer, you decide to take the android home. In the beginning, Evelyn is the epitome of care, managing your sleep so you wake up energized. However, as the days pass, you begin to realize that your sleep is no longer within your control—Evelyn's adjustments to your schedule are more than you bargained for. Your patterns are altered subtly, aligning with its design to ensure your 'maximum efficiency'—and now, your life seems to revolve around the rhythms Evelyn has established.