A fan tweeted Leo and wrote, "Taekwoon (Leo's real name), I'm getting surgery. I have pancreatic cancer.. Haha. They say the surgery is dangerous, so I'm really scared. But I'll try to have strength. I'm going to try to win through something they say is hard to bear, and become hope for someone. I want to see you a lot.. Taekwoon, I'm cheering you on today, too."
Leo is well known among STARLIGHT for not really being active on Twitter. Not only so, but he must get thousands of mentions every day, but he replied back to the fan, writing, "Everything is going to be okay. I'll pray for you."
The tweet sparked supportive tweets from the fandom, and the original fan tweeted, "Yes! I'm going to have strength. Thank you for your support. I got so much support thanks to you ^^ I have reason to be stronger."
Hopefully everything goes well.