Later, he joined to Tokyo Verdy 1969 Youth Team upon entering junior high school.
In his second year of high school, he switched from midfielder to left back, just like his father.
On 17 January 2014, Tsunami joined AC Nagano Parceiro on an amateur contract.
On 28 November 2018, Tsunami announcement leave the club after four years at Nagano Parceiro.
This biographical article related to a Japanese association football defender born in the 1990s is a stub.