[
  {
    "character_id": "protagonist",
    "name": "Li Ming",
    "role": "protagonist / self",
    "age": 40,
    "gender": "male"
  },
  {
    "character_id": "char_001",
    "name": "Wang Lin",
    "role": "wife",
    "age": 38,
    "gender": "female"
  },
  {
    "character_id": "char_002",
    "name": "Zhang Hua",
    "role": "mother",
    "age": 65,
    "gender": "female"
  },
  {
    "character_id": "char_003",
    "name": "Li Jian",
    "role": "father",
    "age": 68,
    "gender": "male"
  },
  {
    "character_id": "char_005",
    "name": "Chen Tao",
    "role": "best friend and colleague",
    "age": 41,
    "gender": "male"
  },
  {
    "character_id": "char_008",
    "name": "Sarah Wu",
    "role": "product manager",
    "age": 32,
    "gender": "female"
  }
]