Nao Ojika (小鹿なお) is a Japanese voice actress from Aichi Prefecture, Japan, born on August 9. She is credited in Gakuen Idolmaster (Gakumasu) as MashuLulu, so the MashuLulu credit is the main way many anime and game fans encounter her name. Her profile is therefore often searched under both MashuLulu and Nao Ojika, especially by readers following Gakumasu-related cast information.
In early 2026, Japanese entertainment coverage also highlighted Ojika through her collaboration with Aoi Nagatsuki on a digital photobook and a VOICE PHOTOBOOK. Reports described mutual photography, white and black Lolita-inspired outfits, and separate themed shoots, and a later Yahoo! News article previewed their radio conversation about the production. Those appearances place Ojika at the intersection of voice acting, Gakumasu character credit, and contemporary Japanese photobook promotion.