A karaoke sound source for the duet album "With you", a collaboration between a female artist and voice actor, voice actor Toshiyuki Kusuda, who plays the role of the anime "The Prince of Tennis" (Ryo Shishido). A gorgeous version of all 24 tracks, including a version that contains only Toshiyuki Kusuda's song, a version that contains only female songs, and three karaoke sound sources.