Cosplay for cultural festival helps Miyano work through some past insecurities, one way or another. He's still trying to figure out how he feels about Sasaki, asking those around him what it means to like someone. We're more fully introduced to Hanzawa, Kagiura, and Ogasawara or get to know them better! I truly love this series so much, it's very wholesome and one that I would reread!