Yuduki is a very soft and gentle boy. In addition, he is also down-to-earth. Even when he is praised for his work there is no sign of arrogance but only modesty. He is talented in art and enjoys peaceful activities such as reading. When he gets too immerse in reading, he becomes unaware of the things he does, like wearing Haruhi's clothes or taking off his pajamas and wearing Haruhi's after.