This research-based installation explores the reconstruction of Choi Jung-hoon, the lead vocalist of the Korean band JANNABI, as an AI-generated digital human. Utilizing large language models (LLMs), the system is trained on Choi’s voice, personality traits, appearance, and public data. These elements are integrated into a real-time digital avatar that visually resembles him. Through a microphone interface, the AI human engages in live conversations with the audience, responding in Choi’s tone and mannerisms. The project questions the boundaries between identity, performance, and technological replication in the era of generative AI.