On January 2, EclipseMint Korea made a post on their official Instagram with a photo showing only part of Chuu's face being revealed for a giveaway, and just the day before, LOONA's HyunJin launched her personal Instagram account.

By the surprise of everybody, HyunJin commented on the giveaway event post: "Answer: @chuuo3o! Chuu unnie!!!”

On January 11, the brand revealed the list of the winners in the post, and one of them was HyunJin's personal account! After this funny interaction, HyunJin followed Eclipsemint Korea's account (although she unfollowed them later) and sent a direct message to get the prize. She even shared a screenshot of her message "I won.. but I didn't get the DM..." as her profile picture on the app FAB.

Fans are happy to see the strong bond between HyunJin and Chuu. Some of them commented: "She is so real," "This is so HyunJin," "They are fated to be together," "She opened her account like 10 days ago and she already won a prize," and "BlockBerry Creative must be mad."