Straight Manhwa

I love and hate this manhwa. I love the art and how cute the ML is but sometimes I hate the FL's guts. She was made as an imperfect girl but I don't know, the way she acts sometimes go overboard especially with how she treat Kashin. Like is there a secret on why she hates his gut to the point of her acting like that even tho kashin isn't retorting back to her? As far as I know, there's none. I just don't understand her character. Joshua's identity is still quite confusing to me.

This is just a sneak peak of the game 'Mystic Messenger'

Reading this will be up to you since you'll never get the answers for everything. Diving into the game and playing their route is the only way to satisfy your curiosity. I'm pretty much disappointed that they didn't include Saeran here. He's one of the important character in this game, and knowing they made Seven the ML here, just made me more disappointed.
No spoiler about the story here so u can read this first.