The Huening siblings display their fond support for each other as Hueningkai and Huening Bahiyyih dance to Kep1er's "Up!" together.

The siblings were previously seen doing Kep1er's first dance challenge for "WA DA DA," in which the brother and sister showed off their chemistry on screen together. 

On June 27, Hueningkai showed his support for his younger sister Huening Bahiyyih once again by doing another Kep1er dance challenge for their latest track, "Up!" The two siblings showed off their exceptional talent and visuals as they were seen dancing in the halls.

 Once again, netizens and fans were excited to see the interaction between the two and praised the skills and talent of both siblings. Netizens commented, "They are so cute,"  "Kai should become the extra member of Kep1er at this point," "I really love how supportive they are to each other," "Generally male idols change the movements a bit while doing girl group choreographys. but I love how Kai doesn't change anything and does the choreography as it is," "He's so good," "I feel happy seeing them together," "Both of them are so tall," "Their legs are so long," "Why I love seeing Kai do Kep1er or gg covers in the first place is because he doesn't try to make it masculine looking and does the dance exactly as it is," and "My fav siblings, Huening siblings."