Perfect Cosplay [Crossover]

Japanese cosplayers are so dedicated. Gu Hua has always sincerely believed this. When he cosplayed the Bandage-Wasting Device, his fellow cosplayer kept going "pew pew" while adding special effects, then immediately fell silent when touched. When he cosplayed the famous sorcerer killer of the jujutsu world, he and a guy with a spiky sea-urchin hairstyle stared wide-eyed at each other. When he cosplayed the ultimate fighter from Demon Slayer, his fellow cosplayer played along and showed him what a century of psychological trauma looked like. When he cosplayed the most slippery Joseph Joestar of the Joestar family, a man whose face practically screamed "invincible" came up and asked if he was Joseph Joestar's illegitimate son. When he cosplayed the world's only consulting detective [FGO universe], his fellow cosplayer, who looked like an elementary school kid, figured out who he was and became an enthusiastic fan. Japanese cosplayers really are amazing. Today, Gu Hua is once again clapping like a seal for his fellow cosplayers' passionate performances. 1. Gu Hua is so thickheaded that even the author can't bear to look, but his instincts are EX and his hand-to-hand combat skills are second to none. 2. Gu Hua's actual ability is copying and editing data. His face is just ordinary handsome (?). He doesn't look like anyone else; he's just so good at makeup that it's enough to make gods and men furious [?]. 3. No BL secondary couples. Everyone's relationship is platonic. Theme: I don't know. I don't even know, and I'm still clapping like a seal.