As the story progresses, it becomes clear that Shiki is not what he seems. He is revealed to be a master manipulator, using his charm and charisma to control and emotionally abuse those around him. Minami, in particular, is trapped in a toxic relationship with Shiki, and Sora soon finds herself becoming increasingly entangled in their complicated web of emotions.

Shiki's actions can be seen as a form of NTR, as he uses his manipulation and charm to keep Minami and Sora in a state of emotional limbo. The game's writer, Ryukishi07, explores this theme in depth, creating a story that is both captivating and unsettling.

Ultimately, "Seven Days Gal" is a game that will appeal to fans of psychological thrillers and dark, twisted storytelling. Its exploration of themes such as NTR, emotional abuse, and madness make it a challenging and often disturbing experience, but one that is well worth playing for those who are willing to immerse themselves in its dark world.