On March 20, 2026, Lovelyz’s Kei marked her birthday with a new Instagram post. Alongside the phrase "HAPPY KEI DAY," she sent her love to fans.
Kei’s photos—featuring a black off-shoulder dress and a soft smile—stood out. The accompanying images included fan art celebrating her birthday and messages of gratitude.
Fans flooded the comments with notes like "Happy birthday" and "Happy Birthday my flower." Thanks to their love, Kei shone even brighter.