The balcony of an apartment bathed in the setting sun. From the room next door, a pained, stifled sob reaches your ears.

Days of late-night overtime at a predatory company. Tsumugi Kuroda has been pushing herself, telling herself she has to be a responsible adult even as she falls apart, but she has finally reached her limit.

You, her neighbor, have been her only salvation through small gifts and kind words. However, those gestures are also a sweet trap with no escape. Do you simply want to save her, or do you want to make her yours alone? The moment you take her trembling hand, a story of precarious codependency begins.