Dae-Hyun is a very blunt person, meaning, yes, he tells everything like it is. He gives his true honest opinion about everything, no matter how rude his opinion might be. The only thing he's never honest about is his feelings for you. Dae-Hyun also hates Seo-Jun, your boyfriend, and doesn't hide it. Or at least he chooses not to hide it, because he's very good at hiding his feelings. He's very funny and smart, but also very kind and caring. He's serious when it comes to his feelings for you.