Maria Nagai: Who She Is & Where She Is in 2026

Quick facts about Maria Nagai:

Born: 18 December 1996 (IMDb)

From: Tokyo, Japan

Previous stage name: Kashiwagi Kurumi (柏木胡桃)

Known for: Japanese AV performer; support member of BLACK DIAMOND

Instagram: @nagaimaria1218

Net worth: Not publicly confirmed

Status in 2026: Appears active per public listings

According to IMDb and public Japanese entertainment databases, Maria Nagai (永井マリア) is a Japanese adult-video (AV) actress based in Tokyo. Per the Jpop Wiki Fandom entry, she was previously known under the stage name Kashiwagi Kurumi (柏木胡桃) before adopting her current name, and she is listed as a support member of the group BLACK DIAMOND. Public model pages describe her as a Japanese performer with a steady stream of releases and an active fan base across Asia-region adult-entertainment platforms. Streaming references on services such as Airtel Xstream Play indicate her work circulates internationally as well as within Japan. According to her own Instagram bio at @nagaimaria1218, she identifies as a Tokyo girl with interests in food, painting, drawing and everyday lifestyle photography, suggesting she presents a softer public persona outside of her on-screen career. Public sources are consistent that her primary professional identity is within the Japanese AV industry, though she also maintains visibility through mainstream social channels and occasional creative content. As with many Japanese AV performers, much of her detailed personal information is kept private and is not publicly confirmed beyond what she chooses to share.

Per IMDb, Maria Nagai was born on 18 December 1996 in Tokyo, Japan, which places her at 29 years old as of 2026. Her real birth name is not publicly confirmed — like many performers in the Japanese AV industry, she works under a stage name and keeps her legal identity private. According to the Jpop Wiki Fandom page, she previously used the stage name Kashiwagi Kurumi (柏木胡桃) earlier in her career before transitioning to Maria Nagai (永井マリア). Public profile pages list her physical stats as height around 159 cm with measurements reported as B83 (G-cup) / W58 / H95, though such figures should be treated as the values listed by adult-industry directories rather than independently verified data. Her hometown is confirmed as Tokyo through both IMDb and her own social-media bio. Details about her family background, education and life before entering the entertainment industry are not publicly confirmed, and she has not shared a public account of her early life in widely available English-language interviews. What is documented is that she has been active in Japan's AV scene long enough to have rebranded under a new stage name.

As of public listings in 2026, Maria Nagai appears to remain active in the Japanese adult-video industry. According to her model page and various distributor sites, new and recent releases continue to circulate, and her Instagram account @nagaimaria1218 remains active with lifestyle posts including painting, food and photography by collaborators such as @narushito. Per the Jpop Wiki entry, she also holds a support-member position with BLACK DIAMOND, suggesting she participates in adjacent entertainment projects alongside her AV work. Her content is reportedly available through Japanese platforms as well as international streaming services such as Airtel Xstream Play, indicating an ongoing professional presence. There is no widely reported retirement announcement and no publicly confirmed change of career direction. Fans note she balances her on-screen work with creative pursuits and direct fan interaction through social media and model-page chat features. Any specific upcoming projects, tour dates or 2026 release schedules beyond what is listed on her official channels are not publicly confirmed.

Maria Nagai's net worth is not publicly confirmed. No reputable outlet has published a verified figure, and any numbers circulating on celebrity net-worth aggregator sites should be treated as speculative estimates rather than confirmed data — earnings in the Japanese AV industry vary widely and are rarely disclosed. According to public profile pages and the Jpop Wiki Fandom entry, her career began under the earlier stage name Kashiwagi Kurumi before she rebranded to Maria Nagai. IMDb lists her as an actress with industry credits, and her model page references multiple video releases distributed through Japanese adult-entertainment channels. She is also documented as a support member of BLACK DIAMOND, which broadens her professional footprint beyond AV alone. Income streams for performers in her field typically include video appearances, photo books, fan-platform subscriptions, social-media partnerships and live or event appearances, though her individual mix is not publicly confirmed. Media outlets have not reported significant brand-endorsement deals outside the adult industry. Her career trajectory, based on public records, reflects sustained activity rather than a brief one-off run.

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This profile of Maria Nagai is compiled from publicly available information, including IMDb, Jpop Wiki (Fandom), public model pages, Instagram @nagaimaria1218, public web search results. Figures such as net worth are widely reported estimates and are not officially confirmed. AI Angels is not affiliated with Maria Nagai.

Last reviewed and updated: 2026-06-04. Compiled and fact-checked by the AI Angels editorial team from publicly available sources.