In July 1968 , Mizuki signed onto the Columbia Music Entertainment label and released his first single called `` Kimi ni sasageru Boku no Uta '' , composed by Kanae Wada .
Ichiro Mizuki began his solo career in 1968 , although his first single `` Kimi ni sasageru Boku no Uta '' was released as this song was composed by Kanae Wada .