
@kira I'm done reading the novel and it's his brother Sangwoon who ask the mystery being to help Sangjun improve his talents. While in a coma, he's like dreaming/seeing whatever was happening to his older brother and when the mysterious guy/being appeared in that dream-state with him, he ask to help his brother. So he's aware of what's happening around him.
The story became more interesting when Sangwoon woke up because he's really talented, sweet and funny. He redebuted along with Black Beans, his original debut group before the accident. And he's really talented and a genius and Sangjun is really protective of him. It's also good to know that there's no romance in this story. Which is good. It's all about family and friendship.
In Chp 41, what if Sang-Jun's power (borrowed?) was Sangwoon's? I mean, he's skilled. And what if Sangwoon wants to help Sang-Jun 'cause he knows he's struggling (╯°□°)╯︵ ┻━┻ I DON'T KNOW!!!!