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.