Birthday: December 27, 1995
Height: 173cm (5' 8'')
Weight: 63kg (138 lbs)
Hair: Black (Blue Tint)
Blood Type: A
Rin has a protective and supportive personality. He can be very violent and get into fights (possibly caused by his demon side), but really has a kind heart. He supports his friends and tries to encourage and help them. He also seems very protective of Yukio, and aims to surpass him one day. Rin is clueless at times such as saying phrases wrong or thinking that the Kraken's fins are ears. Despite this, he is able to connect with someone's feelings to his own, such as Shiemi Moriyama's grief over her grandmother and Ryūji Suguro's ambition to defeat Satan. He's not the type of person for school or studying, though he was able to gain a junior high diploma and become an Esquire.
Unlike his younger brother, Rin is immature, which leads other people into believing that he is the younger twin out of Yukio and himself. He is headstrong (figuratively as well as literally) and is often very open with his friends. However, when his friends found out about his demon heritage, some become afraid of him, thinking that he is unstable which could lead to a disaster, but they slowly got used to him and accepted him during the Kyoto Arc.
He seems to have a small soft-spot for animals. In the beginning of the manga, the reason he had gotten into a fight with Reiji Shiratori and his delinquent gang was because they were torturing pigeons.
Rin Okumura, a teenager possessing abnormal strength and endurance who, along with his younger twin brother Yukio, was raised by Father Shiro Fujimoto. One day, Rin learns that he is the son of Satan, the strongest of all demons. Witnessing Shiro dying to protect him, Rin ends up doing what his guardian asked him never to do: draw the demon-slaying blade Kurikara, which restrains his demonic powers, from its scabbard. From that moment on, Rin not only gains permanent demonic features like fangs, pointed ears, fiery "horns" and a tail, but also the power to ignite himself into blue flames that can destroy almost anything they touch.
This is Me in Real Life(Webcam photo...)~~~