Miyama Ryoki

 (三山凌輝), also known as RYOKI, is a founding member of FIRST.

Trivia

 * He used to work as an stageplay actor before
 * Can speak English
 * Used to live in Australia and America
 * He went to an international school from kindergarten till finishing high school
 * Is a fan of the Korean group Stray Kids

Singles

 * Shining One (Pre-debut)