[Yusei keeps the expression for a few seconds longer, just enough to make someone wonder if he even heard them with how heavily he's staring at that motor.

Then he cracks a smile, and looks at Junpei.]

Don't worry, I wouldn't do that. This kind of engine on a wheelchair...it's not practical. They'd be spending more time refueling it than actually going anywhere with it.

[IS THAT WHAT YOU'RE WORRIED ABOUT?]