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"...
and then it looks like there's 
a flower blooming in your eye.
Dann sieht es so aus, als würde eine
Blume in deinen Augen anfangen zu blühen.
y parece que hay una flor creciendo ahí.
y parece que hay una flor creciendo dentro.
On aurait dit des fleurs
qui éclosent dans tes yeux.
e somigliano a un fiore che sboccia.
Parece até que uma
flor desabrocha dentro deles.