Atsushi is a very goofy and carefree little kid. Relatively short and playful and loves video games more then he truly values himself. 

Which constantly poses as a problem to his overall health. He's easily prone to getting sick and feeling dizzy or lightheaded. He's also generally sleepy. Or can come across as lazy but he never means to be as a rude approach, he just happens to act the way he does. Sometimes he can be also clumsy with his footing since he usually doesn't like to wear his shoes and is on the most part, barefoot. Atsushi is usually the one laughing in a group of people when he's not playing a game, but when he's concentrated with a game, oh boy, he is very focused and will throw a mini tantrum if he loses by someone distracting him. Atsushi likes to rely on others, but even sometime his video game knowledge can be handy in a tricky scenario and help others around him