[What do you mean that's a joke? Minako is overwhelming, says Chikusa, who is overwhelmed by any considerably friendly or energetic person. For now, however, that's only mental commentary. Instead, he just blinks at her, and then at Ken.]

I didn't think you'd be interested.... [Perhaps a fair assumption-] And talking a lot is tiring on top of more tiring stuff. [Oh, there it is, the truth.]

[Well, it has been a lot of work, honestly, even with Minako helping him out. Besides, if he told Ken, then maybe his own soon-to-come gesture wouldn't be as much of a surprise.]

So... What do you think?

[...Is this to Minako or Ken? Hard to say.]