Kentaro Sakaguchi Dating Scandal: What We Know About His Alleged Affair

Liputan6.com, Jakarta Kentaro Sakaguchi is now caught in a dating scandal linked to a love triangle. Reports from early September 2025 say he has been in a relationship for four years and has been living with a hairstylist who is three years older than him. The woman, known as Ms. A, works in hair and makeup, and it is said that they started living together in Tokyo around 2021.

However, during this relationship, Sakaguchi allegedly also had a secret relationship lasting nearly three years with actress Mei Nagano, who is a well-known figure in Japan. The two actors met during movie projects in 2015 and maintained close ties during later work.

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Background and Long-Term Relationship

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According to Allkpop, Kentaro Sakaguchi has been in a committed relationship for about four years with a woman three years older than him, referred to as Ms. A. She works as a hair and makeup artist. The two have been living together in Tokyo since around 2021. Their relationship was relatively private but known to some acquaintances and families as a serious one.

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Secret Relationship with Mei Nagano

While maintaining this long-term relationship, Sakaguchi allegedly began a secret relationship about three years ago with popular Japanese actress Mei Nagano. The two first met during the filming of the movie "My Love Story!!" in 2015. They later worked together again, which strengthened their bond. This affair reportedly overlapped with Sakaguchi's cohabitation with Ms. A, causing a love triangle.

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Mei Nagano's Controversial History

Mei Nagano's involvement adds complexity because she was earlier linked to a scandal involving married actor Kei Tanaka. This controversy had already affected her reputation before the current affair news with Sakaguchi surfaced. The overlapping relationships among Sakaguchi, Nagano, and Tanaka have fueled public and fan criticism.

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The "Prada Curse" Connection

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Both Sakaguchi and Mei Nagano are ambassadors for the luxury brand Prada. This sparked discussions about a supposed "Prada Curse," where the brand's celebrity ambassadors appear to be prone to scandals. This has attracted additional media and public attention due to the pattern of controversies linked with Prada representatives.

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Relationship Status and Agency Response

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According to Chosun, Ms. A confronted Mei Nagano. She is asking her to stay away from Sakaguchi. Sakaguchi reportedly admitted his feelings for Nagano to Ms. A, but did not formally end their relationship for some time. Ultimately, the couple with Ms. A separated, as Sakaguchi chose to focus on his career. Neither Sakaguchi nor Nagano's agencies have officially commented on the scandal yet.

This affair issue has seriously impacted Kentaro Sakaguchi's public image and could affect his career trajectory going forward, especially given his rising fame in Japan and South Korea.