Super Junior's youngest member Ryeowook will appear as a guest on the 29th episode of 'Kim Hee-chul's Chukachu,' a YouTube music variety show hosted by Super Junior's Kim Hee-chul, which will be released on June 25th at 6 PM. Ryeowook is making a comeback with his solo track 'Runaway,' and will showcase performances of his signature song 'The Little Prince' and new song 'Chamomile.' During their encounter, when asked about his transformation over 10 years since his solo debut, Ryeowook humorously replied, 'I've become a more mature man,' drawing laughter from the audience. The two members, as Super Junior's eldest and youngest members respectively, demonstrated unique chemistry while discussing fan anecdotes and the differences in vocal styles between second-generation and contemporary idols. Responding to questions about Kim Hee-chul's vocal strengths, Ryeowook answered 'You can feel the live feeling even on CDs,' generating agreement from the audience. The episode will feature Ryeowook's summer-themed new song performances and lighthearted conversations.