⋆౨ৎ˚⟡˖ ࣪ Kuro and Kiku! ( 31 )

It is very often taken into consideration that during WWII, Japan was one of the most ruthless, dangerous, and powerful nations in the world.[2] He enjoys expressing his power and becomes very aggressive when he wants something. Unlike his 1P counterpart, he is much more in control in the Axis. He carries a very honorable front, to the point of punishing those considered dishonorable. He is ruthless in his exploits. He is often remorseless, and carries a "sorry, not sorry" attitude. He retains his counterpart's politeness, though in a matter of honor rather than real respect. He does not speak unless spoken to, and even then in short and to the point sentences. He is not friendly for the sake of friendliness and may even be considered cold and judgmental.

Japan is depicted with a cold look on his face, differing from his counterpart's lack of expression.His hair is slightly more red-toned and his eyes are red. He wears a black version of Japan's uniform, a uniform of the imperial Japanese navy with gold-bronze looking epaulettes and a aiguillette,as well as a long, purple cape and white gloves. Japan has worn a similar uniform in several strips and official art work. Like his counterpart, this Japan carries a katana, though he handles it in his right hand as opposed to his left.

He loves animals, especially cats, and owns a white dog called Pochi that resembles an Akita or Shiba Inu, both Japanese breeds. He also eventually gets a rabbit and a guinea pig. He tends to have a weakness for things that are soft and fluffy.

A shy, quiet, and hard-working man, Japan does not know very much about the outside world, partially due to his self-isolation, and needs time to adjust to other people. He is very curious and interested in learning things from other nations. His distinct island customs may seem mysterious to others, although he finds them perfectly normal. He tends to have the behavior of an "old man" and was a hikikomori for a long time, having spent about 250 years in isolation and keeping contact only with Netherlands. Though he appears horrified at the idea of nudity or intimate contact, he has erotic woodcuts in his possession, which he tries to hide secretly between his non-erotic books. Japan also voiced his preference for 2D girls over 3D girls to England, Greece, and France in one strip, hinting that he has an otaku side. His otaku side is further shown when he decides to buy a Shonen Jump magazine in his preparations for the New Year.

Japan seems to be fond of food in general, very similar to China's fondness, his country's food in particular, as evidenced by his annoyance of having his salted salmon taken off Germany's diet plan. However, unlike China, Japan seemed willing to share recipes and ingredients of some dishes. He expressed dismay at the increase of the price of eggs due to a bad economy. He also had the urge to touch the Italy brothers' ahoges due to them reminding him of vegetables. It is said that cockroaches are one of the things that Japan hates the most, to the extent where he could cry over them. Although he appears relatively calm most of the time, it is suggested that his anger would be the "scariest". However, it is shown that it is hard for him to get that angry, as he is mostly able to only summon an "unpleasant feeling".

He is a short, slim man with short black hair, dark brown eyes, and is often depicted wearing a white naval uniform with black and gold accents and a katana sword often at his left hip. His first appearance in both the anime and the published manga shows him briefly wearing a more ornate version, with gold epaulets and frog clasps down in the front of the jacket. his hair is dark brown, and his eyes are a lighter brown.his height often fluctuates. Although he is one of the shorter characters, he can be seen standing at different heights, such as being anywhere from chest height to near eye level height when standing next to America.