Masaki is a middle school student in Oarai. When he takes his pet corgi for an early morning walk on the beach, he sees Sho surfing. He's so enthralled by the sight of Sho that when he's asked if he wants surf, he immediately agrees to start. That's the moment when surfing becomes his life.
And from his doggy paddle 
came his nickname...
...ومن أسلوب سباحة الكلب استُمدّ لقبه
und daher kommt sein Spitzname
Y como solo puede nadar
al estilo perrito,
Y como solo puede nadar
al estilo perrito,
et c’est ça qui lui a valu
ce fabuleux surnom,
E questo stile ha dato origine al suo soprannome...
E do nado cachorrinho
vem o apelido dele,
отсюда и прозвище его взялось...