Ngl I would have been happy with just the first two sides of him being the gap moe. Like, sociable:cold would be hard to make work in a one shot, but it would be unique. Cold:blushu blushu is an acceptable legit gap moe, if not just a little cliche. But sociable:blushu blushu is a little... short for a gap.
That being said, I feel like the actor guy could work as a gap moe character if the mangaka chose to take that angle instead. I think if I don't consider how the selling point of this One-shot is Gap Moe, I'd be interested in reading more of it