阮 光司
Nguyen Koji（グエン コウジ）
Koji Guenno — Bassist of NAjNANicknamed “The Silent Backbone.” Born in 1995.
A second-generation Japanese-Vietnamese musician. His father, once a bassist himself, now runs a Southeast Asian goods chain in the Kanto region. Inheriting both his father’s rhythm and pride, Koji has played the bass since childhood, cultivating exceptional groove and precision.
Yet in Japanese society, his mixed heritage and appearance often set him apart. Though his deep, resonant tone shook the underground stages of Shimokitazawa, few truly grasped his worth.
The only person who ever saw his music and heart without prejudice was Sara, a fellow outsider carrying her own foreign blood. She resonated with his sound and embraced the loneliness behind it. For Koji, she became the first person he could trust completely — the one he swore to protect.
His loyalty goes beyond the stage. Quiet and composed, Koji will stand up for Sara without hesitation whenever she’s hurt, shielding her from the world’s cruelty. His unwavering devotion and unspoken strength form the invisible backbone of NAjNA itself.
—A man of silence and loyalty. That is Koji Guenno.
