Dong Wan wrote:

"When an athlete suffers a ligament injury, even in cases when recovery by conservative treatment or rehabilitation is possible, they are usually advised to receive surgery despite the potential aftereffects. This is because the treatment period that follows an injury is included in their contracts.

With the surge in media outlets and celebrities, there are more and more things that they are forcing each other to do. There are so many adults who expect young [celebrities] to show bright and healthy smiles when they can't eat or sleep properly. They expect [the celebrities] to be sexy but not have sex and to be tough but not fight with anyone.

Many junior celebrities are agonizing over how big of an illness they want to carry in their hearts for the sake of the sweet taste of money and status.

So many papers and reports are telling us how convenient and fast psychoactive drugs are and how many side effects and aftereffects they bring about. We must no longer stand by and watch people offer substances because they were asked to or because they need a quick solution. We cannot overlook the fact that the complacent actions taken by large agencies can bring about a contagious disease that is spread without contact."

Kim Dong Wan shared this piece alongside a clip of moonlight surrounded by clouds.

Meanwhile, actor Yoo Ah In also expressed his grief through a long, detailed letter regarding how he found out about his pal's death and what she was to him.

"Sulli passed away. Her real name is Jinri (meaning "Truth,"), Choi Jinri. I had a few business encounters with her and I was one of her colleagues who called her Sulli instead of Jinri," he began.

"She was an icon. Some people despised her and disapproved of her, but I saw her as a hero. The icon of the new generation, a goddess, a goddess who boldly expressed her individual freedom of expression. A victorious gamer who kicked the old code of ethics that smell of antique mustiness. An angel who came to save the wandering lambs stuck between nosiness and self-censorship," he added.

"I feel sorry for the concerns of my loved ones so I'm conveying my writing secretly. Don't fight. Don't blame each other. Please reach out to each other and share Sulli's truth with each other. Not doubt. Not hate, not resentment. It should be love. It should be done with love. Doesn't anyone and everyone have the same heart?"

"I hope Sulli, who cannot be called again, will not have her name called in vain. I love you," Yoo Ah In concluded.