This paper presents a general conceptual framework for LLM-based agents, covering aspects like brain, perception, and behavior, and what's important is that it can be adapted for a range of applications. Interestingly, most of the authors are from Mihoyo, a game company known for their hit games like Honkai Impact 3 and Genshin Impact, which are quite popular in Korea. Mihoyo is recognized for its outstanding development skill and entertainment sense.