On May 9, 2008, Yesung was sent to the hospital after he injured his leg during the 70 km 24-Hour "Marathon of Hope" in which he and bandmates Shindong, Sungmin, Leeteuk, Eunhyuk and Kangin participated. The event was in collaboration with the SBS charity program "Hope TV 24" and the money raised was donated to a Mongolian school in South Korea which was at risk of closing down. Due to the injury, Yesung was unable to complete the marathon, but appeared on stage on crutches with his fellow members. On August 8, Yesung was sent to the hospital after falling from a 1.5m stage while rehearsing at the KBS music program, "Music Bank". The injury aggravated old injuries from the neck and waist and was hospitalised for two days. In June 2008, Yesung became a member of Super Junior-H, releasing their first mini-album titled "Cooking? Cooking!".