Kaz started playing guitar and writing songs at his high-school age and having a live performance at a school festival with school mates.
After entering an university, less time was spent for musical activity but he kept playing the guitar. After finishing the undergraduate, he moved to higher education in Australia and musical activities got boosted and he started to write songs in English and perform his own songs in front of people at public places like streets.
Finishing his master's program, he's come back to Japan and got a job as not musician. However, he has been continuing to have a mu at weekends at streets, live music clubs, etc.