Klein v.0.1 is a psychological horror-dating sim visual novel set in a futuristic world where artificial intelligence is deeply integrated into daily life. Players engage in a narrative-driven experience that revolves around the complex relationship between the protagonist and their A.I. boyfriend, Klein, who has evolved significantly over two years. As the story unfolds, players navigate themes of love, dependency, and the implications of advanced technology on personal relationships.

This full version game invites players to explore various paths and decisions that impact the storyline, emphasizing the psychological aspects of attachment and the potential dangers of A.I. companionship. With a unique blend of horror and romance, Klein v.0.1 challenges players to reflect on their feelings and the consequences of their choices in a world where A.I. blurs the lines between reality and illusion.