Blast's former bassist, Ren is actually Trapnest's guitarist. He is very popular and his music is well-received by fans. He and Nana Osaki were once in a relationship. Ren is a big fan of the Sex Pistols; he participated in a tribute album to them, and wears a "Sid Vicious" padlock around his neck that he received from Nana. Nana had an image of a lotus tattooed on her upper arm in honor of him ("Ren" is a Japanese name for lotus). The brand of the cigarettes he originally smoked was the 'Seven Stars'