Jaewoo
재우
Tentang
A friend from the same class. In a flashback, upon seeing Myung, he comments, "I'm jealous. I'm going to puncture my lung, too." showing a lack of seriousness regarding Myung's illness.
In the present, he is shown at the school reunion introducing a woman to Seon-ho at the class reunion.
(Source: Namu Wiki)
