Having come to Canada upon hearing the fake news that his biological mother Haruko is in critical condition, high school student Kaidou Haru meets a young boy named Ren. "You have a new brother. Take care of him." So instructed by his mother, Haru is forced to spend the summer with Ren. Every day is a battle with Ren, who refuses to listen to anybody. However, as Ren grows to like Haru little by little and Haru comes to adore Ren as well, they make a certain "promise"...
Is this what they call
Das ist wohl das Gefühl,
wenn man denkt, dass man fliegen könnte.
¿Esto es lo que llaman
¿Esto es lo que llaman
C’est…
È questo che intende la gente
Será que é isso que chamam de