AI YOU Town：デジタルツインで友達を作り、収益を生み出す

Existing approaches to infer user traits and generate responses consistent with a persona rely on static prompting. They lack calibrated uncertainty, ignore sequential evidence, and drift during long interactions. We present textbf{AI YOU}, a framework that continually updates a personality profile with 22 dimensions from conversation and embodies it in a personal digital twin. Practically, the system combines prompting, Bayesian updating, and conformal prediction for persona inference. A periodically refreshed memory anchor and cognitive memory with three layers preserve persona consistency over long interactions. Across the main results, AI YOU emph{(i)} achieves conformal coverage ranging from 0.921 to 0.976, emph{(ii)} improves uncertainty calibration and reasoning grounded in memory, and emph{(iii)} enhances persona fidelity over static prompting in role playing over 100 turns while reducing trait drift, for most evaluated backbones under adversarial settings with multiple agents. The prototype emph{AI YOU Town} initializes an imaginative twin world for future interaction. The online demo is available at href{https://quinnnnnne-ai-you.hf.space/}{mbox{texttt{quinnnnnne-ai-you.hf.space}}}.