Since there's an outbreak of measles in town, Abiru suggests to Majiru that he should get infected right now, for it is quite worse to get them as an adult. Nozomu then proceeds to unveils many more types of "measles" you're better off to have as a kid, since their effects can be disastrous later on in your life. As Nozomu and Kafuka walks in the street, they stumble on Kanako Ōra, a laid back and careless girl from Nozomu's class, who doesn't seem to mind that a myriads of political parties uses her property's wall for their posters. As Kafuka and Nozomu continues to explore the concept of "through life", Chiri decide to label object and people so as to know who's the creator.
Ya que no hay un brote de sarampión en la ciudad, Abiru sugiere a Majiru que debe infectarse en este momento, ya que es bastante peor para conseguir que en la edad adulta. Nozomu luego procede a desvela muchos más tipos de "sarampión" Es mejor que tener como un niño, ya que sus efectos pueden ser desastrosos más tarde en su vida.