Ryosuke Hanyu has an inexplicable obsession with volleyball.

Ryosuke Hanyu really likes volleyball. He discovered this sport when he was five years old. The volleyball, which weighs only 260 grams, can make such a deafening sound, which made his little soul boil.

So after graduating from junior high school, Ryosuke decisively chose the strongest volleyball school, Shiratorizawa. Little did he know that this unlucky kid would end up in the death zone of Miyagi...