A really good one-shot.
But my favorite part isn't the romance, sexual tension, or tightly-written narrative. It's Yamamura talking about how she puts together her cosplay designs and even how she acquires her materials. She has her cosplay logistics on friggin' lockdown and I can't have enough respect for that.
Obviously that's mostly directed toward the author. Even in the afterward the amount of research done for two gag characters is impressive.