Utsubo Rifu

Utsubo Rifu (ウツボリーフ) is a prisoner of Glum Valley Correctional Facility and a participant in the Prison Killing Game featured in Danganronpa IV: No More Despair. His title is the Ultimate Diver

Personality
Utsubo Rifu initially seems like a calm, yet judgmental boy. He is very quick to accuse Moku of being the mastermind, and tends to point fingers at others whenever they slip up, or do something wrong, often leading to fights between him and other characters.

However, his true nature is revealed in Chapter 4, as he murders Amber over Monokuma's motive, and then attempts to kill Hoshiko Ginga. This fails however, and he ends up falling to his death as a result of his arrogance.