- Name: Mikuru
- Birthdate: May 18
- Birthplace: Fukuoka, Japan (raised in Tokyo)
- Bloodtype: A
In July 2016, it was announced that he would be suspending activities to receive treatment due to poor health, however his condition continued to deteriorate and he passed away on October 26, 2016 at 4:51 A.M.
As per his wishes, details surrounding his illness were not disclosed. A private funeral was held for family and close friends, and two public memorial ceremonies were held for fans in Fukuoka and Tokyo.