Shiga avenged a previous loss to Ito in the quarterfinals of April 's Japan F4 Futures tournament .
Shiga is a 21 - year - old from Yokohama in the Kanagawa prefecture .
Shiga , a 21 - year - old from Yokohama in the Kanagawa prefecture , avenged a previous loss to Ito in the quarterfinals of April 's Japan F4 Futures tournament .