This story takes place about one hundred years ago. Nadja is a bright, cheerful girl who was raised in an orphanage near London, England. Nadja was entrusted to the orphanage when she was a baby. So she thought her father and mother were dead. But before her thirteenth birthday, she found out that her mother might be alive...

Nadja sets out on a journey to find her mother! With all of Europe as the stage, Nadja's exciting adventure begins!

The regular players from Seigaku participates in an exhibition game aboard a cruise ship. However, they discover that the event is being run by a corrupt millionaire heavily involved in illegal gambling and betting, who demands that they lose the match on purpose. To add to the confusion, one of the players on the rival team introduces himself as Ryoma's brother.