Seungkwan of the group SEVENTEEN showcased a strong senior-junior bond with RIIZE’s Sungchan and Sohee, whom he has cherished with extraordinary affection despite not being direct juniors in the same agency.

Recently, Sungchan and Sohee of RIIZE appeared as guests on the popular YouTube channel "117" content, Seungkwan’s Bibidi Babidi Boo. Seungkwan, who is often called the "K-pop Professor" for his deep interest in the overall music industry, warmly welcomed Sungchan by introducing him as a member of his "Jewel Box" (a list of cherished juniors).

Sungchan and Seungkwan are known to be close friends in private, often enjoying basketball and visiting karaoke together. Regarding this appearance, Sungchan showed deep trust and loyalty toward his senior, stating, "When I received the offer to appear, I thought I must make time to come out no matter how busy my schedule was."

Another highlight of the broadcast was the first meeting between Seungkwan and Sohee. For Sohee, whose ears turned red due to his shy personality early on, Seungkwan helped him relax with his characteristically skillful hosting and kind consideration.

Fans are showing enthusiastic reactions, saying, "Seungkwan’s eye for his 'Jewel Box' is never wrong," "The combination of SEVENTEEN and RIIZE is a feast for the eyes," and "I can feel Seungkwan's sincere love for his juniors."