Depression Serum

When depression becomes an uncontrollable virus. Hospitals are full, robots dominate hospitals, human desires plummet, the fertility rate is about to reach freezing point, antidepressants are commonly used but scarce... How to increase desire, reduce depression levels, and allow humans to continue to survive? When the depression serum was produced, everyone thought they had been saved, but little did they know that a bigger conspiracy had already enveloped the world! When darkness comes, no one can escape... This is a world where robots and humans coexist. It is also a world where robots generate emotions and are healthier than humans on the inside. Welcome to the world of depression!