Anyway, I'm Falling in Love with You. Volume 4

Mizuho and her friends are celebrating the summer festival the best they can during a pandemic when suddenly, Shuugo’s older brother Kougo shows up and is instantly smitten. Kougo is no ordinary boy with a crush, though—He’s their new teacher! Mizuho is determined to keep the drama of teenage romance confined to her manga, but can she stop life from imitating art?