The trailer for the Korean short drama 'Her Dazzling Secret', produced by Cocomedia, has been released on the official YouTube channel. This drama is a 78-episode emotional romance short drama that depicts the process of a contract relationship that begins with a marriage of convenience developing into true love.

The main character, 'Jang Yuna', is played by Ahn Yoojeong, who is associated with K-plus. Ahn Yoojeong is a figure who transitioned from being an influencer to an actress, and it has been reported that she is in a romantic relationship with Yoo Byeong-jae as of November 2024. The trailer begins with the successful CEO 'Lee Seo-jin' being pressured by his family to marry. He expresses his desperation by saying, "They keep forcing me to marry at home. When I said no, my grandfather collapsed." He then proposes a marriage of convenience to 'Jang Yuna'.

'Jang Yuna' responds with surprise, "Are you asking me to have a marriage of convenience right now?" However, the two have known each other since childhood and begin their contractual relationship. A noteworthy aspect of the trailer is their past connection. 'Jang Yuna' encourages 'Lee Seo-jin' by saying, "From today on, I'll be your tutor," and 'Lee Seo-jin' vows, "I will study hard and work out every day, and after becoming a truly wonderful person, I will make 'Yuna' my wife."

Fifteen years later, the two reunite. 'Lee Seo-jin' appears as a successful CEO, greeting her with, "Congratulations on your return, CEO." He reveals his long-held feelings by saying, "'Jang Yuna', it's been 15 years. We're finally meeting." 'Jang Yuna' responds, "As if I could forget you. I'm going to beat you up just like when we were kids," showing that her feelings remain unchanged.

The relationship that began as a marriage of convenience is hinted to develop emotionally through kiss scenes and tender moments in the trailer. Amidst a dreamy atmosphere, the line "It's obviously a marriage of convenience, but why is my heart racing?" suggests the transformation of their relationship into true love.

Noh Kyung-ho, the CEO of Cocomedia, stated, "Based on the accumulated expertise in producing short dramas in the Chinese market for a long time, we aimed to present a finely detailed emotional short-form narrative to domestic viewers." He emphasized, "'Her Dazzling Secret' will set a new standard for Korean-style short dramas that reflect global trends."

'Her Dazzling Secret' is set to be released in January 2026. Cocomedia plans to launch an integrated strategy to connect talents discovered through a global joint audition with major MCNs in China, alongside its partner Cocostars, starting with the release of this project. This aims to establish a new content production model and enhance competitiveness in the global market.