Viral “BTS Jin Lookalike” Actor Opens Up About His High-Profile Dating Scandal

The rumors cast a shadow over his rising popularity.

In his latest interview, Dynamite Kiss actor Kim Mu Jun—better known to K-Pop fans for being BTS Jin‘s doppelganger—opened up about what he learned after being swept up in a high-profile dating rumor earlier in 2025.

Actor Kim Mu Jun | @junmu_/Instagram

Back in April, Kim Mu Jun found himself embroiled in the Japanese actress Mei Nagano‘s massive infidelity scandal. At the time, Japan’s Shūkan Bunshun reported that Mei Nagano was allegedly involved in an extramarital affair with Kei Tanaka while also dating a Korean co-star.

Because Kim Mu Jun appeared in the J-Drama Caster alongside Nagano Mei, which aired its first episode right around the time the scandal broke, he was speculated to be the “Korean actor” mentioned in the report. The rumor was immediately dismissed by Kim Mu Jun’s agency, which stated that the two were “close co-stars,” nothing more.

Korean Actor Denies Involvement In High-Profile Infidelity Scandal

Looking back at what had happened, Kim Mu Jun admitted that the experience made him “realize how careful and cautious [he needs] to be about every action and every expression.”

Every action I take can either harm or benefit me as a public figure. If it benefits me, I’m grateful, but if it causes harm, then I believe it’s truly wrong. That experience made me realize how careful and cautious I need to be about every action and every expression I show. Regardless of what the issue was, it taught me how I should live my life moving forward.

— Kim Mu Jun

Adding that he doesn’t drink or smoke, or have any piercings or tattoos, Kim Mu Jun promised to stay away from trouble going forward.

Kim Mu Jun in “Caster” | Sports Khan

Of course, you have to follow the law, and I believe you shouldn’t do anything that could be ethically or morally problematic. People around me always tell me that ‘becoming a good person comes first.’ I can’t really drink, I don’t smoke, and I don’t have piercings or tattoos. If I just keep living this way, I don’t think there’ll be anything problematic. I always remind myself to cherish the people around me and take good care of them.

— Kim Mu Jun

Read more about Kim Mu Jun here:

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