is a Japanese musician who was elected as the High and Mighty Color main vocalist after Mākii's departure.
Halca played guitar in her previous band. After a few months of High and Mighty Color's disbandment, Halca (guitar/clean vocals) formed a new band called SYN with other bandmates, Tony (guitar/piano), Kenjiro (drums), Matsumoto (bass) and Gunji (scream vocals), but the band later disbanded. Halca is still a close friend with Yusuke (ex-High and Mighty Color) and sometimes does music cover with Tony. Halca is now with her band Tokyo Distillers along with Yu-suke (Rad Rat guitarist), Chi-x (Rat Rat/Ultra Buzz bassist) and Keiichiro (Rad Rat drummer).