[In comparison, Rei's grinning.

Alright - he hates being tasked to do things that he wouldn't think to do on his own and having to transport Eichi back to the dressing room was definitely not something he wanted to do but-]

Ah, what a nasty expression. Then I do consider this to be quite worth it....

[well he never said he was a nice do-gooder monster]

Don't worry. It was clear that you needed assistance without you having to utter a single word.