Go to chapter 8 at the end Gwomryeong opens a door and asks for her help with something. He's wearing the same shirt as he is during the rest of the chapter so it's not from the past. I think he is keeping Minchan's grandma hidden.
So Gwomryeong is actually Bihwans brother this whole time? So Muyeol was also in love with Seoho and wants to bring him back? And he needs the Joseung Samsin to accomplish that? Techincally doesn't that just mean Muyeol and Bihwan have the same goal?
I wanted to see Will and Julio get together ╥﹏╥