"Yeah! That sounds like a plan."

He's already more than happy that Taiki is willing to give it a try, at the very least. Especially with how unsure of everything the other can be. It's a first step!

"Though I guess it means you're going to have to change back first." (Inigo may still be unaware of a little problem here, despite the fact that the possibility of the band falling off should have made it pretty clear..)