Honestly speaking this kind of character suits ABH much better rather than Moon Seoha which was supposed to be…
I couldn't believe they chose him for Seoha (see you in my 19th life for unaware ppl). I read the webcomic first and was shocked by the choice. (webcomic is way better btw)
i think bo geol is the real ki ho and woo hak is his brother...
I go back and forth. Could be bo geol is aware of what happened with ki ho/woo hak and knows that ki ho's dad is dangerous so he's trying to protect woo hak and mok ha. But yeah, could be bo geol is ki ho and woo hak got injured while bo geol was trying to split with his dad so now he's extra wary about revealing his identity.
¯\_(ツ)_/¯