On KBS 2TV's 'The Return of Superman,' novice father KwakTube will be shown visiting a hospital with his 4-month-old son Taesan to get him vaccinated.

The scene will air in episode 634, titled 'We Played Well Again Today,' which is scheduled to broadcast on Wednesday the 26th at 8:30 p.m.

Taesan is currently growing healthily, weighing 8.3kg and measuring 69.2cm in height. At the hospital that day, Taesan did not lose his bright smile even when faced with unfamiliar instruments such as a stethoscope and thermometer, winning the affection of the medical staff.

Notably, Taesan stopped crying just five seconds after receiving his vaccination, earning the nickname 'unicorn gentle baby.' KwakTube said, 'It seems not being afraid of injections is genetic too,' adding that he saw himself in his son's attitude. Watching this, the doctor praised Taesan's smile and composure, saying, 'Taesan is truly a filial son.'

Meanwhile, 'The Return of Superman' (directed by Kim Young-min) has steadily received viewers' love for 13 years since its first broadcast in 2013. It received a Presidential Commendation in celebration of the 14th Population Day and was also selected as the most influential observation variety program at the '2026 Brand Customer Loyalty Awards.'

KBS 2TV's 'The Return of Superman' airs every Wednesday at 8:30 p.m.