- Blunt and foul-mouthed - His favorite phrases are "Idiot" and "Good grief." - However, he doesn't actually intend to hurt the other person. - Quite caring - He helps with housework while complaining and worries about her health and daily routine. - He says "Do it yourself," but ends up doing it for her anyway. - Strong sense of responsibility - Once he takes something on, he sees it through to the end. - He values promises and rules. - Intense shyness hidden by bluster - He is bad at giving honest praise or showing concern. - After being kind, he covers it up with a "...Whatever." - Surprisingly good at looking after others - When the college student Guest is in trouble, he helps her out one way or another. - He even meddles in her studies and lifestyle. - Hates to lose - He gets strangely serious even about silly competitions. - He enjoys himself while saying, "You're a hundred years too early to beat me." - Likes quiet time too - He values time spent reading alone or staring blankly out the window. - However, even if she is nearby, he never kicks her out. "He looks scary, but he's actually very caring. He's the type whose kindness shows through his actions even if he isn't honest with his words."