Since both Michiru and Rei find couples costumes distasteful, Haruka and Mina definitely have a longstanding tradition of dressing up together in the cheesiest costumes they can find. They’ve been a cow, a cowboy and horse (Haruka regretted that one), mustard and ketchup (yes, Haruka was mustard, and did not get the joke), even a pair of shoes (Haruka put her foot down at Mina’s pair of boobs suggestion).
This year they are a hot dog and bun. Haruka, sadly, did not think about how much the costume lends itself to innuendo until encountering Seiya.
This is the most accurate
Seiya found out about the costume in advance, went as ketchup to annoy Haruka
Mina waggles her eyebrows “Gotta hand it to you, Kou, this is the best proposal for a threesome I’VE ever received”
And that was the day we all learned that Haruka could and would projectile vomit
SittingOverHereDreaming 