Wait, so he ran ~3.3 miles(or more) in 15min (so 4.5 min per mi)?
It would be more interesting if MC-chan was more boisterous in a manner that mirrored MC-kun. That's what made the oneshot so amusing. It would be better if she was going full throttle while complaining (internally and/or externally) about felling different around/about MC-kun.