Katsu smiles at the recognition of Kin. People met while you fall from a tree with a cat in your hands were bound to be sources of adventure.

"Hi, Cat-Kin! There was the 'splosion in Chemistry, but it's been boring today. Azabu's getting slow-Or maybe I'm getting faster! But I most certainly don't move like a greased bullet."

The speedster gives Kin a fake offended look for a second.

"I am much better at not hitting things than bullets. Unless they were controlled by magnets, which Ryuji claims not to control. What 'bout you?"

The smile returns as Katsu asks. Clearly Kin must have had better luck, Academy City would implode without Adventure!