ALLDAY PROJECT’s Youngseo and Woochan are going viral after showing off matching phone cases at a recent Casetify event — and fans can’t get enough.
On July 15, the rookie co-ed group attended a promotional event for Casetify’s latest custom phone case drop.
Each member had a chance to showcase their personalized designs, but it was Youngseo and Woochan’s seemingly coordinated cases that immediately caught fans’ attention. The two posed for photos holding up their phones, revealing cases with similar color schemes and complementary designs.
The other members had different designs, such as Annie with a black one.
Fans quickly took to social media, shipping the two.
너네이거커플케이스야이거? pic.twitter.com/FkwGYNqRw1
— 체리 (@dogcatday) July 16, 2025
Do you guys have couple cases?
dogcatday
Unlike traditional K-pop fan culture, which often discourages romantic speculation between idols, especially those of opposite genders, the reaction to Youngseo and Woochan has been notably positive. Many fans praised the duo’s chemistry, both on and off stage, pointing to their natural banter in variety content and synchronized energy during performances.
The pairing is especially notable given the rarity of openly shipping K-pop idols within the same group, a topic that typically triggers controversy or backlash. But with ALLDAY PROJECT promoting a more youthful, free-spirited image, fans seem eager to embrace this more relaxed dynamic.