Katsuya is nearly six foot tall and right this moment he is hunched over blushing terribly and trying to not jerk away flailing as Verity gives him a half hug. Someone is very socially repressed and not used to being touched. Having a dead mom does that.

"Yes please, Miss Verity." She's really nice. For a mostly stranger. Oh wow he's freaking out in front of a lady he's seen maybe four times ever? SHe's going to think he's just pathetic. This is why he doesn't talk to people. She's free to lead him off toward the park. He's following behind her and after she gets a few steps she'll notice he's holding onto the edge of her shirt. Not in any weird way, just barely pinching it so he doesn't get separated from her in the crowds of the Nexus. She doesn't wear sleeves and he can't see all that well around him while he's looking decidedly at his feet, after all.