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 ...
You have to stay by Kotoko-nee-san's 
side, even more than Irie.
Jefe, tienes que estar al lado de Kotoko-nee-san, 
incluso más que Irie.
Jefe, solo tienes que estar 
con Kotoko más que Irie.
Tu ne perdras pas face à Irie,
Você precisa ficar junto da Kotoko 
para não perder para o Irie.