Unable to deliver any milk to Fuuka, Yotsuba gets up the next morning to do it. As she exits the house, she spots Fuuka biking to school. So Yotsuba gets on her bike and follows Fuuka, alone, to her school, which is several miles away.; Koiwai instructs Yotsuba on proper bike safety. Later, she goes bike riding with Asagi and her friend Torako.; Koiwai has to spend the day working, so Yotsuba is on her own.; To get Yotsuba out of their hair so they can do their homework, Ena and Miura assign her the job of collecting unwanted items to be recycled.; Koiwai takes Yotsuba to a bike shop to buy bicycles for both of them.; Jumbo stops by to help Koiwai build a bookshelf.; Koiwai splurges for an expensive bottle of milk, which Yotsuba feels obligated to share with the Ayase family next door.; Ena shows Yotsuba how to make a homemade telephone