The dataR.cpk file found in Persona 5 Royal contains a GMD model folder, Model (P5R). Each folder is categorized by character ID number. See Model (P5R) for a full list of ID number with character names and descriptions. 4003 refers to P5R's Male Shujin Student, and contains 4 GMD models related to him.
|1||c4003_001_00.GMD||Summer Shujin||Shujin uniform worn in summer|
|2||c4003_002_00.GMD||Winter Shujin||Shujin uniform worn in winter|
|5||c4003_005_00.GMD||Midwinter Shujin||Shujin uniform worn in midwinter|
|61||c4003_061_00.GMD||Shujin Track||Shujin track outfit|