Yeah... hardly the best, but I didn't have a lot of time to do it sooo...
Maybe one year I'll redraw this (and add Eri in, too)
Probably the conversation going on:
Hitoshi: *sigh* "I thought we all agreed to pick costumes based on creatures from Japanese mythology..."
Izuku: "Shinso-kun has a point..."
Ochaco: *barely restrained laughter sounds*
Seasonal Celebrations: Fun Costumes!