If you didn't get it, 'that boy' or 'the boy' is Shinichi/Conan from Akai's viewpoint.
"I-It's all part of da play!" Heiji yelled, his face one of panic as he removed the Knight's helmet to reveal the real Shinichi. While he rubbed off his makeup and ruffled his hair back into place, his expression was a mix between anger and panic while Ran was tight-lipped and blindly hoping this was an unintended part of the play. "Kudo once told me ya can't let someone die on ya, or else ya no better than a murderer yaself," he recalled to the gathering crowd.
Sonoko peeked out from backstage and held up a sign…
…simultaneously, the crow disappeared in a puff of smoke.
/
Shinichi, groggy and still attempting to regain his breath, opened his eyes to find himself in the underworld – but this time there was much more to see than blackness. A grey dismal sky constantly deposited fat raindrops on him and the flat ground had become gravel, albeit with a lot less rocks than expected.
Akai, now in 'human' form, reappeared in front of the detective after said detective managed to pull himself to his feet. "Welcome to our world, boy. You won't be able to hide with that smaller form of yours here – everyone here has enough power to sense who you really are," the longhaired man told him. "Like that koibito."
Shinichi, half tuned out to Akai's words and not knowing who the 'koibito' was, admired the skyscrapers around him – they were ordinary ones like in any city but though the colour seemed to have been sucked out of them they were unique due to the gothic roof that topped each one. Stone gargoyles leered down at them from those roofs, their faces like meme trolls but more menacing. As for the residents-
The detective's thoughts got interrupted by Akai's footsteps moving away. When he looked back, a person with silver hair, a black fedora and murderous eyes was giving him a stare down as if he'd seen the teen – or more likely Akai - before. This was the person Akai had been referring to when he'd said, 'Like that koibito.'
It somehow wasn't surprising that a man in black like him would be here...('him' being Gin, not Akai, no matter how much a man in black Akai could be.)
Upon Shinichi's further scrutiny of Gin's face, there was a thin scar underneath the man's left eye and two holes in his black clothing - since there was no blood, Gin had a bulletproof vest on. Akai, meanwhile, slipped his silenced handgun away like he was a cowboy in a western.
However, the teen knew from the tension in the air that the next time Akai and Gin met it was going to be bloodier than this, and instead of seeing monochrome, there would be vivid red.
