Rikuo Nura is the protagonist of Nurarihyon no Mago series. He is the grandson of Nurarihyon and Yohime, and son of Rihan Nura and Wakana Nura.
Rikuo Nura is a grandson of the Supreme Commander on Nura Clan, Nurarihyon. He takes form of a human during the day, and yokai at night. He is also the Third Heir of the clan, although he doesn't like it before and just wanted to live as a normal boy. He later accepted to become the Third Heir after he beat Gyuki from Mt. Nejireme.
Rikuo Nura was created by Hiroshi Shiibashi. He appeared on the Manga, Act #1. On the Anime, he appeared on Episode #1. He was voiced by Jun Fukuyama and Eri Kitamura in child, VOMIC.
Rikuo is the son of Wakana Nura and Rihan Nura. He was born as a 3/4 human and 1/4 Yokai. He already possessed the power of yokai since he was a child where he rescued Kana and his friends on a bus. He was assigned as the 3rd heir of the clan and still young to become one. Rikuo is also a grandson of the Nurarihyon and Yohime. Rikuo possessed some of his powers and take many resemblance of Nurarihyon at his young age when he turns into his yokai form.
In his human form, Rikuo appeared as a young middle school boy. He has a brown spiky hair with a mix color of black. He has a brown eyes and wearing glasses every time, although his sight is perfectly fine. Saori also describe his hair as reverse pudding. He is usually seen wearing his school uniform over a red sweater and a running shoes on public. He wears the replication of Nurarihyon's past outfit while he's at home, a cloak over black Kimono with traditional Japanese sandals. Unlike Nurarihyon, he wears his cloak blue instead of red.
In his yokai form, Rikuo's physical appearance entirely change. With his hair change and taking resemblance to Rihan Nura with a white colors and black on the bottom half of it with wavy black lines. His eyes turned narrow and the colors turned Red. He also becomes significantly taller and his voice deepens. Despite his human form, he takes his glasses off.
On the second season, Rikuo change his cloak into a red cloak like Nurarihyon.
In his human form, he appeared as a kind and nice person who sometimes might be hasty and weak, but also clever. He may turned serious at certain situations and a caring person to his friends. At first doesn't agree on succeeding Nurarihyon as the 3rd heir but later after defeating Gyuki, he agreed on becoming the 3rd heir of Nura Clan.
In his yokai form, he change into a strong person that inspires fear amongst his allies. He also became more clever and gained more physical strength than his Human form and turned more serious at certain points.
Kana and Rikuo has been friends since they were children. Rikuo often worried about Kana's safety all the time whenever Yokai appeared and go near her. Although that Rikuo doesn't seem to realize yet about Kana actually falling in love with Rikuo's Night Form.
Wakana Nura is Rikuo's mother. She often watch over Rikuo and have faith in him that he can succeed the clan.
Nurarihyon is Rikuo's grandfather. Nurarihyon ordered Rikuo to succeed him by becoming the 3rd heir of the Nura Clan.
Aotabou is Rikuo's trusted attendant who watch over Rikuo during his school's activities with Yuki-Onna. Rikuo mostly called him by Ao or Kurata on outside.
Karasu Tengu is a loyal follower of Nurarihyon and also one of the advisors of Nura Clan. He also show some respect and have faith in Rikuo.
Yuki Onna is Rikuo's trusted attendant who always overprotect him all the time. Yuki Onna has watch over Rikuo since he was a child. She disguises herself to watch over Rikuo during his school activities with Aotabou. She told Rikuo to call her Tsurara when she is in disguise. . She is also secretly in love with Rikuo Nura.
On Gyūki Arc, his friends decided to pay a visit to his house. Yura Keikain, who is a new student possessed the ability to sense Yokai presences. When Yura and Kana was kidnapped by Kyuso, he and the whole clan came to save them and managed to defeat Kyuso.
Later then when Kiyotsugu's Squad decided to have a trip to look for Yokai, he was invited to come along with Yuki Onna guarding him. He also rescued Yuki-Onna when she was nearly killed by Gozumaru, one of Gyūki's subordinates. Rikuo was seen grown more powerful, even while he's still in human form when he was fighting Gozumaru. Later, he defeated Gozumaru when he turned into his Yokai form.
As Gozumaru defeated, he puts Yuki-Onna to sleep and meet Kana on his way to Gyūki he later leave Yuki-Onna to Kana. When he arrived at
Gyūki's hideout, he and Gyūki begin the fight and manage to defeat Gyūki. When Rikuo returned home, he give his trust to Gyūki once more, knowing that Gyūki is a loyal member of the clan that never wanted anyone to go against the Nura Clan, even if that person is Rikuo himself. Gyūki once more gained his trust and they became ally again.
During Shikoku Arc, Karasu Tengu assigned more bodyguards to watch over Rikuo due to Hihi's death leaving the clan more concerned about their safety. Rikuo Nura met an unknown enemy on Ukiyoe Town called Tamazuki and Inugami. They also appear on a night when the clan are discussing the situation on a meeting where Inugami Intrudes the Nura clan mansion and killed a Yokai.
Much later then, Rikuo also investigating the shrines that has been destroyed by Shikoku Yokai. He later assigned his guardians to watch over the remaining Shrines that hasn't been destroyed. Inugami also make a call for Rikuo where Inugami lured Kiyotsugu's Squad to his trap. Rikuo then manage to defeat Inugami.
Due to many troubles he is facing, the situation turned more serious and causing Rikuo panic and get confused without Nurarihyon's presence in the mansion.
As Shikoku Clan are going to attack at dawn, Rikuo Nura gathered the whole clan to fight the Shikoku Yokais.
Rikuo was blinded by Yosuzume's curse, and Yuki-Onna helps him regain his sight by freezing her left eye so that the curse won't affect it. After regaining their eyesight, Rikuo fought against Tamazuki (who slaughtered his comrades to gain power using the Hashanoakashi). After Rikuo defeated Tamazuki, he decided not to kill him.
Much later, Natto Kozo told Rikuo that he overslept for two days straight. The whole clan claimed that the Shikoku problems are settled. Kana and Kiyotsugu's Squad also payed him a visit and waited for him at the Dojo in his house.
During the past arc, Rikuo also share history of his awakening 4 years before the original series. The child Rikuo told his classmates about his family and his house that he has many Yokai live with him. Although none of them believe Rikuo as well as Kiyotsugu (who's a big fan of yokai).
Much later during the meeting of the clan, Gagoze mention something about eating children lives and shocked Rikuo as he remembered about his friends.
Much later, he intend to save the children, although he was stopped by Mo kugyo Daruma. Anger to this, Rikuo's Yokai power awakened and later gather everyone to save his friends right away and defeat Gagoze.
When Kiyotsugu's patrol squad looking for Yura, Rikuo went off to look for her himself and found her training with her Onmyoji cloth. Much later, two Onmyoji arrived in front of them, Ryuji Keikain and Mamiru Keikain. Ryuji mention that he sense a Yokai aura that is coming from Rikuo.
When Ryuji attacked him, Yura quickly moved to protect Rikuo and struggle with her brother. As Yura lost to him, Rikuo quickly took Yura when he turned to his Yokai from (due to the nightfall coming). Yura finally realized that her brother was right about Rikuo being a Yokai. Ryuji and Rikuo began to fight, and ended with Rikuo severely injured and lost.
Much later when Ryuji is about to attack him, he was stopped by Kubinashi as he's wrapped by Kejoro's thread. Right after that, the Nura Clan arrived, Rikuo shows his true identity and shocked Yura for knowing he is the grandson of the Lord of Pandemonium, Nurarihyon.
When Rikuo beg Nurarihyon to go to Kyoto, Nurarihyon disagreed and ordered him to draw his sword instead. When he lose to Nurarihyon's "Fear" Power, he realized that Rikuo isn't ready yet and will be killed instantly by Hagorome Gitsune's subordinates. Nurarihyon decided to send him to Tono Village in order to gain his power to cut through "Fear".
In Tono, Rikuo was helped by a group of Yokai, Itaku, Awashima, Reira, Amezo, Yukari, and Dohiko. When Kyoto Yokai came to Tono, he was mistaken to be Nurarihyon and was attacked by them. Although Rikuo used his Kyoka Suigetsu and later helped by Reira and the rest. When the Yokai leave Tono, Rikuo said that he's ready to leave Tono to go to Kyoto.
Rikuo ask Nurarihyon to go to Kyoto with his Hyakki Yako with the help of Tono Gang. Nurarihyon lend him a big Yokai Ship for them to go faster through the sky. In the way, Rikuo appear on a meeting and having trouble since Kubinashi and Itaku had a fight. Much later, Rikuo and the others was attacked by Hagorome Gitsune's army.
Rikuo shows himself as the leader of his Hyaki Yako and managed to beat the Yokai leader. Later, they are given some advices by the defeated enemy leader and Rikuo trusted him, since he's sure that he isn't much of a yokai who would lie. Rikuo and his group was also shown on Kyoto street, killing a group of Yokai who attacked two couple.
Later then, Rikuo and his Hyaki Yakou arrive at Torii Labyrinth, while Awashima is attacked by one of Hagorome Gitsune's subordinate and later manage to defeat it. Rikuo and his group met up with Hidemoto (a former leader of Kekain Clan who helped Nurarihyon defeat Hagoromo Gitsune 400 years ago) along with Yura, Ryuji, Mamiru, and Tsurara.
Right after Rikuo and his Demon Parade meet Yura, Ryuji, Mamiru, Hidemoto, and Tsurara, a giant Yokai called Tsuchi-Gumo appeared and looking for someone strong enough to fight with. Rikuo then stand before him and accept the offer, when he was attacked by Tsuchi-Gumo, Rikuo used his Kyoka Suigetsu to endure the attack, but Rikuo's "Fear" power was surprisingly crushed by Tsuchi-Gumo and attack Rikuo in violent way that causing him seriously injured.
After the attack, Rikuo woke up in Mount Kurama. He was later trained by Gyuki and a Kurama Tengu in order to master his Fear. After Rikuo is down, Zen arrived and treated Rikuo's injuries. While they are eating dinner along with Gozumaru and Mezumaru, they were attacked by the subordinates of Kurama Tengu, this is where he learned his new skill named Matoi (Equip). Rikuo is able to equip other Yokai's fear power and unleash a powerful blow. On his way to Tsuchigumo, he and his Demon Night Parade defeated many Kyoto Yokai at various seals.
During the day, Rikuo takes form of a Human. He is usually weak at this period, although at Gyūki Arc, he was seen fighting Gozumaru with his sword in order to protect Yuki-Onna, who almost got killed by Gozumaru. Although in Human Form, Rikuo was seen skilled in using the sword.
At night, Rikuo turns into his Yokai Form where his abilities are significantly heightened. Rikuo uses his Katana as his weapon to fight and also mastered several Skills at combat.
This technique allows Rikuo to make his enemies unaware of his presence. This technique will be lifted if Rikuo's fear is cut through by his enemies.
Rikuo holds a big cup of Sake and blows it, turning the sake into a blue flame that could burn a large area that could kill numerous Yokai.
It is a technique that Nurarihyon taught to Rikuo. This "Fear" technique will make Rikuo impossible to get hit by his enemies. Although he can still be sensed by his foes.