Yuudai Moroboshi

Yudai Muroboshi is a student from Bukyoku Academy and the previous winner of the Seven Stars Sword Art Festival. Like the year before Yudai participates as one of the three representatives of his school in the festival.

Appearance
Yudai is a handsome young man with blonde hair and green eyes. He is usually seen in his school uniform and wears a hachimaki.

Personality
Yudai is a cheerful, talkative, straightforward young man. Yudai is modest enough to not underestimate others and doesn't feel he should be called the Seven Star Sword King because the A-Rank Ouma Kurogane didn't participate in the previous Seven Stars Sword Art Festival.

Like Ikki Kurogane, Yudai is very strong willed and hard working when it comes to whatever goals he sets for himself and doesn't give up until he reaches them, no matter how hard it is. This was proven by the fact he was able to make it through his hell like rehabilitation and go on to become the Seven Star Sword King. Because of these traits, Yudai is seen as a home town hero and is very well respected by almost everyone who knows him personally. He also seems to be very tactical in battle as he came up with very clever ways to try and combat Ikki's movements even in his most dire of situations.

History
During his primary school period, Yudai was involved in a severe accident that almost left him crippled and had to retire as a Knight for 4 years where he underwent severe rehabilitation to recover and eventually took the spot of the number 1 Apprentice Knight in Japan, becoming the only person to win the Seven Stars Sword Art Festival twice. Challenging and beating opponents such as Tohka Todo in the semi-finals of his second victory.

Party Crashers
Yudai is seen defending Ikki and confronting Yui Tatara, who had tried to severely injure Ikki's sister with sharp metal blades in the meat Shizuku was about to eat. The battle between Yui and Yudai never proceeds as other representatives come into the confrontation causing Yui to leave in shame. Yudai then introduces himself to Ikki, his first opponent in the Seven Stars Sword Art Festival.

Dinner and Confrontation
Yudai meets Ikki, Shizuku and Nagi and invites them to his family restaurant to which they accept. During their time at the restaurant Yudai is unable to join them as he is busy helping the family with the restaurant.

After Ikki and company had left, Yudai is seen stopping Ouma's Kusanagi attack on Ikki, by using his Tiger Bite to completely stop Ouma's powerful attack. Ouma then decides to leave and Yudai takes a heavily injured Ikki to the hospital.

Battle of Kings
Yudai, the next day, confronts his opponent Ikki at the seven sword art festival. The fight begins and Ikki tries to get the upper hand but is badly out maneuvered and out witted by Yudai as Ikki takes on heavy damage by the combination of Sanrensei, Houkiboshi and his Noble Art Tiger Bite which nearly destroyed Ikki's device.

Yudai however was nearly beaten by Ikki who was able to use his fourth secret sword technique to create an after image, causing him to be able to get passed Yudai's spear, however Ikki was unable to land the final blow allowing Yudai to hit Ikki with the back of the hilt of Yudai's spear.

Yudai then tries to finish off Ikki but senses something dangerous within Ikki, this is proven right as Ikki finally realizes that his subconscious was trying to use Edelweiss' technique all along, which he picked up using blade steal in their last meeting. Yudai is then quickly overpowered by Ikki and his new sword technique. Yudai is then seen badly cut up by Ikki barrage of attack that he could not possibly keep up with, causing his sister, who was in the stands, to finally call out to him and cheer him on. Yudai then shows his final hand and tries to mess Ikki up by throwing his spear at him knowing he would not be able to dodge as Edelweiss' technique's one major flaw was that if taken by surprise the user could not stop to dodge. However because Ikki believed that Yudai would never give up, he could see through this trick, and used his after image sword technique to trick Yudai and then slash to finally put down the Sword King once and for all, giving Ikki the win. Yudai is then carried off in a stretcher after giving Ikki some encouraging words.

Abilities
Master Spearmanship: Yudai main form of combat next to his Noble Arts. His well-honed skills with his Device allowed him to defeat dangerous opponents such as Tohka Todo. This feat made more impressive because he was able to keep himself out of Tohkas' Raikiri range through out the match. The sheer power, speed, accuracy and skills he possesses has caused even a well-rounded martial artist of Ikki Kurogane's level to be greatly impressed many times during their first match.
 * Sanrensei (三連星): Yudai's high-speed spear technique which involved striking three points at once.
 * Houkiboshi (帚星): A homing-thrust technique which involves the movement of the wrist. Yudai uses this technique by tricking his opponent into stepping into his range by using on thrust in his move and traps them with Houkiboshi.

Immense Speed: Yudai can move and strike at such amazing speeds that most people watching him fight can't even see most of his actions.

Immense Stamina: After having made it through his hell like rehabilitation, Yudai has gain incredible amounts of physical and mental endurance.

Keen Intellect: Yudai is well known for his cunningness in battle, capable of misleading his opponent's into a false sense of confidence under multiple layers of traps to defeat them. He can also figure out the weaknesses in a person fighting style and make plans on how to best deal with them. He was able to see through Ikki's intention when using Dokuga no Tachi and make a trap of his own to counter the technique, although he had never seen that technique before.

Magic destruction: Yudais' Blazer ability allows him to destroy other Blazers magical abilities. He can easily break through both Device and Noble Art of even an A-Rank Mage-Knight. This gives him an advantage against Mage-Knights who mainly fight using their Blazer abilities.

Device
Koou (虎王 literally, Tiger King): Yudai's Device. It takes the form of a yellow spear.
 * Tiger Bite : Yudai's trademark Noble Art, it creates a Golden Tiger made from magic power and can devour almost anything in it's path. Also due to it's properties of being made from magic power, the Golden Tiger can devour the opponent's Device and Noble Art to power up but the tiger is unable to cause physical damage in return.