not me i tell you what
Me neither
Guessed it but its been awhile since his appearance that I forgot he exist lmao
I knew it since the earlier chapters after seeing how he acted after knowing that Sejin is to be engaged. I'm sure Ido knew it as well — that's why he personally escorted MC, knowing that this brother of his will show up.
Me♀ from the very beginning
Who else guessed that his brother felt that way??