Indeed, as if triggered by the bolt of motion, the Protect spell comes flying out like a light - and surrounds Tidus as it hits, covering him in a barrier that's visible, then falls out of sight.

Please, anybody who comes into the coach - don't mind these two.

Tidus watches the spell as it surrounds him, and he's got an idea of which it is - but the spell's shielding is different from his own, and when Senku suggests what he does, there's a bit of a squint.

"Which one was it? Protect?" He pauses, and... ...

He walks back over to the table, puts out his arm; but he lets it go limp, not holding it too near the other guy.

"Grab at me, fast. It'd work better if you were really coming for me, but." But, if Senku wants to see it - because if he reaches for Tidus's arm, the green shielding will start to show, creating a barrier between the two. He could technically 'push' through it...

Or he can try punching at it, cause a better wall of resistance. Is Tidus going to have time to stop him??