Masaki is living a regular high school life in Shonan while staying at the home of legendary board shaper Tadao. In the early mornings, he goes out to ride the waves with Kosuke and Yuta. Then, he goes to school. After classes, he goes back to the beach. Day after day, he lives a life of contentment, immersed in surfing. Amidst all of this, little things that Masaki does pile up, angering Kosuke. Unable to let go of his indignation, Kosuke challenges Masaki to a surfing match...
It's all about how you use 
each individual wave's power.
المسألة كلّها متعلّقة بكيفيّة استخدامك
لقوّة كلّ موجة
Man muss die Stärken
jeder Welle richtig nutzen.
Hay que saber aprovechar
el potencial de cada una.
Hay que saber aprovechar
el potencial de cada una.
Le tout est de savoir
comment exploiter sa puissance.
Sta tutto nel modo in cui si sfrutta
 la forza della singola onda.
É uma questão de saber usar o poder de cada uma.
Нужно уметь использовать
сильные стороны каждой.