Donghae is childish, but has that childlike innocence which most people have lost ages ago. He's loved by everyone he meets because eventhough mute, he is really adorable and always does his best to please everyone. But no one is perfect in this world, and Donghae is no exception, because Donghae has no voice. Hyukjae likes to think he's mature. He wants to believe that he is more than capable of taking care of Donghae and protecting him. After having known each other almost all their lives, he's able to read Donghae like an open book now. He doesn't need Donghae to write it out on his little notepad or make funny hand gestures, he already knows just from Hae's expressions.