<figure id="attachment_426458" class="wp-caption alignnone" style="width: 1179px;" aria-describedby="caption-attachment-426458"><a href="#" data-ident_hash="6224eb06"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2025/05/eef1cb6d5dc7cdd3cf9732ddfadcab10-2.jpg" alt=""></a><figcaption id="caption-attachment-426458" class="wp-caption-text">With the affair rumors involving Kei Tanaka affecting her career, Mei Nagano is also linked to Kim Mu-jun, who is embroiled in a cheating scandal.</figcaption></figure>
<h2>The cryptic words posted on Instagram for her birthday</h2>
Is this a further blow to Mei Nagano, who is already on the verge of losing everything?
Actress Mei Nagano (25) has been embroiled in a cheating scandal with Kim Mu-jun (27), a South Korean actor. On May 24, Kim updated his Instagram for the first time in three months.
Kim and Nagano appeared together in the Sunday drama &#8220;Caster&#8221; (TBS), and since the &#8220;cheating&#8221; rumors about Nagano hosting both Kim and Kei Tanaka (40) at her home on consecutive nights, this was the first time Kim had spoken out.
The Instagram post featured a photo of Kim gazing into the distance in a bamboo grove. The caption, written in Korean, read:
&#8220;Don&#8217;t lie. It&#8217;s already half over. Mu-jun, happy birthday.&#8221;
May 24 was Kim&#8217;s 27th birthday. While multiple photos were shared, the one with the saddest expression from Kim topped the post. Starting the caption with &#8220;Don&#8217;t lie&#8221; also felt out of place for a birthday post.
&#8220;Nagano&#8217;s agency has denied reports that she was in a relationship with Kim, claiming that her mother was at home when Kim stayed over. They also said the same when Tanaka stayed over. However, there aren&#8217;t many people who completely believe this explanation. Photos showing Tanaka and Nagano very close, even holding hands, were published by Bunshun. The behavior with a married man at her home with her mother there is inappropriate, and perhaps the person most shocked by this is Kim himself,&#8221; said a reporter from a sports newspaper.
Kim&#8217;s agency has stated that he and Nagano are just close colleagues. However, the fact that Kim posted it normally, rather than through a 24-hour story, seems to suggest a stronger intention behind his words.
<div data-friday-nextpage-lead="What is meant by &quot;Half over...&quot;?"></div>
<h2>On the broadcast on the 25th, only the credits were restored</h2>
Meanwhile, something unusual has occurred in the drama Caster. In this drama, Nagano plays the role of the chief director of &#8220;News Gate,&#8221; Saki Kubo Hana, and Kim portrays the assistant director, Choi Jae-sung.
However, after the report about the affair with Nagano, Kim did not appear in episodes 5 and 6, and his name was also absent from the drama&#8217;s credits. But in the broadcast on the 25th, while he didn&#8217;t appear in the main segment, his name was added back to the credits. Could it be that the drama team, taking Nagano&#8217;s relationship with Kim into account, decided to edit him out, only to reinsert his name in the credits?
When Kim posted the message &#8220;Half is over,&#8221; was he referring to the drama, his career, or perhaps his relationship with Nagano?
We reached out to Kim&#8217;s agency to inquire about the meaning behind the &#8220;Don&#8217;t lie, half is over&#8221; post, but did not receive a response by the deadline.
&#8220;Although we don&#8217;t know exactly what Kim is dealing with, if he&#8217;s harboring dissatisfaction with both his agency and Nagano&#8217;s side, and is angry enough to say &#8216;Don&#8217;t lie,&#8217; there&#8217;s a chance his bomb could explode at any moment. If Kim found out about Nagano and Tanaka&#8217;s relationship after spending the night with her, and if his career was suddenly affected without him knowing, it&#8217;s not surprising that frustrations would build up. Kim could become the most dangerous presence for Nagano.&#8221; (Wide-show insider)
The question remains: will Kim eventually speak out about all of this?

 Yusuke Kondo

 Mei Nagano's alleged affair with Kei Tanaka has had a significant impact on her work. The Korean actor Kim Moo-joon, who was the "other guy" she was reportedly "two-timing" with, tweeted on social networking sites... ...

Kim Mu-jun’s Cheating Scandal: Will He Become a Dangerous Presence for Mei Nagano?

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