IVE's Rei publicly expressed her affection for senior singer Red Velvet's Joy. On August 31, Rei posted several photos with Joy on her Instagram, along with the caption, "Happy to be sisters." This post once again highlighted the close friendship between the two.

Rei first revealed her friendship with Joy on MBC's "I Live Alone" last April. Since then, the two reunited in a music show waiting room, where they showed their strong bond through intimate gestures such as linking arms and hugging. Their deep friendship, overcoming an eight-year age gap, attracted attention.

In the released photos, Rei showcased a cute visual fitting her nickname "Kongsuni." The pictures where she and Joy pressed their faces together created a sisterly atmosphere. Fans responded with various comments such as "Arm-linking princesses," "Both are so cute," "Let me join too," "Thanks for the beautiful friendship," and "A harmless and lovely combination." Red Velvet's Seulgi also left a comment saying, "You two really look like sisters," acknowledging their chemistry.

Meanwhile, Rei served as a special MC on KBS2's "Music Bank" on August 29. IVE, the group Rei belongs to, released their fourth mini-album "IVE SECRET" on August 25 and continues active promotions. Through this album, IVE demonstrates musical growth and strengthens communication with fans.

Since their debut, IVE has quickly gained public love, ranking high on various music charts. In particular, this mini-album contributes to solidifying their musical identity. Rei stands out not only as a member of the group but also through her individual activities.

The friendship between Joy and Rei has drawn positive reactions from fans, and their relationship is expected to continue attracting much attention. They support each other's activities and do their best in their respective roles. Rei continues to share her friendship with Joy with fans alongside IVE's promotions.

Fans are also highly interested in IVE's upcoming activities and Joy's future plans. Both groups maintain their unique styles while continuing musical growth. The friendship between Rei and Joy is regarded as more than just a senior-junior relationship, having a positive influence on each other.

IVE plans to further strengthen communication with fans through various music programs and fan meetings. The relationship between Rei and Joy has become a hot topic among IVE and Red Velvet fans, and their activities will continue to receive much attention.