Part 4/8:
As the intensity mounts, Song finds herself in a tender moment with Luna, who’s clutching a picture of her sister. This bond reinforces Song's determination to protect Luna. Upon discovering a hard drive containing unsettling records of lunar water experiments, the truth unfurls in painful detail, exposing the harrowing reality of the unethical experimentation on human lives, including that of Luna073, a clone deemed unworthy by prior researchers. The face of cruelty emerges as Song comes to terms with her sister's involvement in these heinous acts, simultaneously grappling with guilt and responsibility.