Kotoko is depressed because of Naoki's gloominess for having the news exposed to the entire school that they are living in the same home. But she gets a glimmer of hope because Naoki says to Kin-chan, who came to spy on the Irie family: "Today you hate someone, but tomorrow you love them." On the last day of Summer vacation, however, the house is vacant except for Naoki and Kotoko. Now that the two of them are all by themselves ...
Yeah. I don't want the only memories of our 
last summer vacation to be of homework.
Verdad. No quiero que los recuerdos de nuestras 
últimas vacaciones de verano sean de hacer deberes.
Pues sí. No quiero que los recuerdos de mis últimas 
vacaciones de verano se limiten a estudiar.
Oui, il ne faut pas que les révisions soient
les seuls souvenirs de notre dernier été.
Eu não quero me lembrar 
só do dever de casa,