I’d find this more uncomfortable if Koguma wasn’t clearly okay with it. I mean, Hino asks her to go to the beach with her, specifically requests that they go alone, and Koguma blushes, hugs her and agrees. Even when Hino takes it too far like usual, Koguma just teases her about it and gets her to change her mind.
This girl knows what she signed up for, and while she may be embarrassed, she wouldn’t still be here at all if she didn’t reciprocate, and she’s made it pretty clear that she does.
I love it. Super cute.