Nanami Takase officially entered the adult entertainment market in . Her debut was highly marketed by the well-known studio kira☆kira , a label renowned for producing content centered around specific youth cultures, cosplay, and highly conceptualized adult videos. Entering the market as a kekkon (exclusive/contract) actress, she was positioned as a major new face for the studio's early 2007 release slate.

Some of Takase's notable roles include:

Takase is known for her sweet and gentle voice, as well as her versatility as a performer. She has voiced a wide range of characters, from sweet and innocent girls to more confident and outgoing personalities. Her singing voice is equally impressive, with a warm and expressive tone that has captivated fans.

Her film debut came in director Kenji Saito’s 2019 art-house drama, The Salt of Nagi . Playing a young widow returning to a coastal village, Takase delivered a masterclass in “wabi-sabi” aesthetics—finding beauty in imperfection and transience. The film’s most memorable shot is a two-minute close-up of her face as she learns of a family betrayal. There is no crying. No shouting. Just a slow, almost imperceptible hardening of the jaw and a hollowing of the gaze. Film critic Hiroshi Matsumoto wrote, “In that moment, did not act. She became the ocean after a storm—still on the surface, but with a devastating current underneath.”

nanami Takase _ is a character from the popular manga and anime series "Karekano" (also known as "Kimi ga Suki da to Sakebitai" or "Love My Life").

The period between 2007 and 2009 marked a transitional era for the Japanese AV industry, defined by a shift from physical DVD distribution to early internet streaming and highly competitive "exclusive actress" marketing campaigns. Actresses like Nanami Takase helped establish the visual and thematic baselines for studios like kira☆kira during this boom period.

Through her , visual branding (soft pastel album art featuring seashells and tide pools), and public advocacy (the “Books for the Sea” project), Takase embodies this slow‑living, environmentally‑aware ethos. She frequently posts photos of coastal walks , hand‑made tea ceremonies , and DIY upcycling projects , positioning herself as an authentic practitioner rather than a superficial marketer.