“…Despite its recognized importance, the processes of how people customize, experience, and interact with personas in LLMs, and how these experiences differ from those with generic and universal conversational agents, remain relatively unexplored. Past research has predominantly focused on categorizing personality types for crafting personas [9,23,43,49,72,87,94], often prioritizing the convenience of designers or developers [37], while overlooking a broader range of diverse personality types [17,67]. There have been few studies that delve into persona designs tailored to individual user preferences or interaction histories [67].…”