C65 Who Is Mine Who Is a Butterfly?

"Don't underestimate the importance of sleep. An average person spends a third of their life asleep, yet who truly understands why we need it? What's the right way to sleep?"

Seeing Qin Anyi's distant gaze, the mysterious man didn't get upset. He just casually sat on his bed, idly picking at his toes...

"Considering the fundamental instincts of advanced mammals