Miuki Umimo turned to pro-tennis to pay back her brother's two hundred fifty million yen debt.
Now, having promised to pay Wanibuchi back in full, within a year,
Myuki is off to America as part of the plans of Utako Otori and her coach Thunder Ushiyama.
There she meets and decisively defeats Wendy Palmer, beloved prodigy of Alan Carrington, influential member of a United States Tennis Association and life long rival of Miyuki's coach, Thunder Caught up in the grudge between Thunder and Carrington Miyuki focuses all her attention and will-power on the U.S.Open, on which everything rides!!
