After a two-year break, he joined Shusei Tsukamoto in forming the progressive/hard rock band Vienna, performing guitar and vocal duties.

In 1990 he participated in the Gerard reunion for a new recording, although left the band shortly after due to musical differences.

In the next year, he adopted his stage name "Chachamaru" and joined the sessions of the hard rock band Girl U Need's self-titled album.

Since the year 2000, Chachamaru has worked with the solo artist Gackt, serving as an associate producer and the lead guitarist for his live band, as well as backing vocalist.

[citation needed] His musical style varies from progressive rock, metal, soul and blues and features some more experimental playing.