Position: Running Back/Safety Jersey Number: 29 40-yard dash record: 4.5 seconds Bench Press: 60 kg 1st Year Student (Grade 10) 40-yard-dash: 4.5 An extremely fast grey-haired boy and happens to be the one who taught Sena how to run. When Riku was in elementary school, he saw Sena being bullied and he used his speed to save him. After that Riku taught Sena that if he could run fast, he would never be bullied again. Sadly, Sena used his speed to be a gopher, (though it's ironic that being a gopher is what helped build up his speed). Riku soon left Sena's school because his family needed to move, but he and Sena meet again later in the series. Like Shin, he was able to quickly deduce Sena's identity as Eyeshield 21. (Source: Wikipedia)
Riku is the adopted brother of Kai and Saya, the youngest of George Miyagusuku's three adopted children. He is a very kind and intelligent boy who loves to cook. His gentle nature even rubs off on the reclusive Hagi to some degree, particularly after he brings Hagi a plate of food and asks him to join the others. Hagi teaches Riku how to play the cello and protects him from a bad injury after Riku falls from a moving train. After Diva drinks most of his blood at the "Zoo", Saya is forced to turn Riku into a chevalier to save his life. Afterwards, Riku shows a compulsion similar to Hagi's to protect Saya at any cost. Despite a brief estrangement, Riku remains close to his older brother Kai and works to heal the broken relationship between Kai and Saya after Kai learns the truth about her. Draining Riku's blood seems to cause Diva to develop a strong interest in him. She takes Karl to the Red Shield headquarters to find Riku. Once she finds him, she rapes him and then kills him with her blood. In the light novel adaptation, it's explained that something in Diva's eyes causes the Chevalier blood in Riku to react with a "maddening desire" that causes him to be incapable of escaping or physically resisting Diva's actions. After Riku's death, Kai has a piece of his crystallized body made into a pendant, which he wears around his neck to remember his lost brother.
The main character of the show, Riku was originally borne in the Heian Era of Japan as Youmei. His mother sent him into the future, where he was taken up by Soutaru Tachibana, to avoid dying in the Chi-Ryuu raid on the Ten-Ryuu shirne. At the start of the series, he's shy, and easily scared. But when he receives the Ten-Ryuu Toujin drive containing Kogenta, Kogenta helps him to become a lot braver and stronger. He has no memory of his time in the Heian era until he goes to Naraku to reunite with Kogenta after losing him by Yuuma and Rangetsu. In Naraku, he sees his memory play in front of him, and learns of his past life. He is the head of the Ten-Ryuu.
The child of Ryouko and the younger brother of Sora and Umi.
A glutton-type character who manned the satellite weapon HELIOS in space.
Birthday: April, 12th Age: 20 years old Blood type: AB Height: 167 cm The Captain of the Third Brigade of the Tokkei. He Makes his first appearance in Chapter 10, along with the other members of his brigade and fights using small knives. His right eye is green and his left eye is blue, as seen in the volume 5 cover.
Riku Fukagawa is 15-year-old boy who lives in Tokyo. He can't remember anything about his family and claims that the only thing he remembered when he was found 5 years ago was his name. Riku has an uncanny urge to help people and all other living things in need. He also states that he couldn't even remember proper Japanese. One day after school he goes to a flea market. There he sees an out-of-the-ordinary character named Satsuki selling "goldfish" though what he is selling is clearly not goldfish. When one of the creatures tries to eat Futaba, a small half rabbit boy, he takes the translating book that Satsuki had to help translate. Riku's friends and Riku himself were shocked to find that Riku could understand the strange language. After that, Satsuki claims that he is Riku's older brother and that he came to take him back to the shop. When Riku helps Satsuki with a delivery because he thinks the load will be too much for Satsuki alone. He tells Satsuki that he came along because he thought the trip would help trigger his memories. Satsuki said it wouldn't because Riku had barely ever left his bedroom so he didn't have many memories of the town anyway. It is later revealed that Riku is a tsunagi (the ability to listen and free a holy spirit from its stone)Riku is the youngest Hiyokoya brother. (Source: Wkipedia)