A Promise with Grandma Hayato forces the girls to share household chores. When they realize Hayato has seen their underwear by doing laundry, they send him to clean Familia as punishment. Shiragiku insists Hayato eat with them at mealtimes like family. When Hayato and Ouka see each other naked in the bathroom because there was no sign, Ami beats him up even though Ouka walked in on him. Hayato practices making coffee, but the girls agree his coffee is terrible. Later, the antisocial Akane somehow makes excellent coffee...