Oh, the beeping - that's a surprise. For at least a second anyway, until Tidus realises what it means, and it's pretty obvious it would do that, isn't it? It's interesting though, when his own on Senku's wrist goes off, and at least if for some reason SCA's got swapped, well... at least whichever one they were wearing, they'd be fine.

"Should I move my hand away?" he slips in before the question comes up, and when the beeping's faded - but whatever Senku's answer, he'll frown some, before giving a small shake of his head.

"Me? No - this is the same I felt when I gave Taiki my SCA."