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"...
Either way, he's a child with a history.
Como sea, le han pasado muchas cosas.
Como sea, le han pasado muchas cosas.
Cet enfant
a eu une vie difficile.
Ad ogni modo, è un bambino
con un passato travagliato.
Nada pode mudar o passado daquela criança.