Ren Shimizu has been modelling for the past few years, having done numerous fashion shoots for Oakley, Yuma. KOSHINO, Under, h.NAOTO, Yumi.KATSURA, Hatsuko.ENDO, Ripper, bea's UP, Wayo MIX, Tokyo mode school, and many hair shows.

She has also appeared in advertisements for TOBU (A Japanese Department Store), Shu Uemura, Wayo MIX,Citizen, Pams (nail and hair), so know so(hair), Zexy. Her print appearences has been in FUDGE (A Japanese Fashion Magazine), Japanese Free Paper.