When the nephew first appeared, Yeowoon was forced to go into Jigu’s apartment to hang out for a bit so the nephew would calm down. While there, Jigu sent a text message to Yeowoon’s gaming account and Yeowoon’s phone sent a notification at the exact same time
I think there’s more moments but at least, that’s the moment when Jigu absolutely confirmed Yeowoon’s identity.
There were several ways:
1. The whole incident with the madeline made him start suspecting. Yeowoon saying he just got a madeline from someone, and Jigu had given a madeline to him that day.
2. Next was when Yeowoon was over at his house when the nephew was visiting and they were baking cookies. Jigu sends a text to Yeowoon while they're in the same room and he sees the notification pop up on Yeowoon's phone. That pretty much confirms it.
Can someone please explain to me how he knows that they're friends in game? I think I just missed it or forgot but how did he find out? When Yeowoon was sick?