While Yuuichi was 12 Ayears old, Kyousuke was at the age of 7. He and his little brother Kyousuke were playing soccer, pretending to be like Gouenji Shuuya. After Tsurugi Kyousuke kicked the ball, it accidentally flew up and got stuck up on a tree branch.
Kyousuke recklessly tried to get the ball back by climbing up. Yuuichi warned him not to climb up because it was dangerous, but Kyousuke said not to worry. As he was close to getting the ball, the branch that he held onto broke and Kyousuke fell. Yuuichi saved him but got his legs injured in the process. He was brought to the hospital and the doctor said that it was severe and it would take a long time to recover. Kyousuke wept when he heard that Yuuchi couldn't play soccer again.
He is a very nice, friendly, kind and caring brother. He had saved his brother from getting hurt by falling off a tree; as he had climbed up there to get their soccer ball. But while saving his brother, he got severely injured.
Even though he loves soccer, he accepts the fact that his condition doesn't allow him to play. When he heard Kyousuke talking to Kuroki Zenzou about his surgery, he became mad at Kyousuke for 'abandoning' the soccer that they both love. He seems to be a big fan of Gouenji, just like his younger brother.
His appearance is quite similar to that of his younger brother Tsurugi Kyousuke. Both have almost the same hairstyles. He is mostly seen wearing patient clothes in the hospital. He wears a black T-shirt with purple pants as his casual clothes. It is seen that when he was young, he used to wear a white T-shirt with blue stripes and a black star. He also wore blue shorts and trainers. He has a wheelchair to move around; in the Galaxy series, they are changed to crutches. He also has a small mole below his lips.
When using Keshin Armed and arming himself with Ma Senshi Pendragon, Yuuichi wears a cyan and black armor with black gloves, black boots and a black belt. He also has cyan and black wings, shaped similarly to those of his Keshin.
His headpiece is almost identical to that of Ma Senshi Pendragon, white with two black horns positioned on the front.
He stayed in the hospital for 6 years, waiting for his injured leg to recover. At the age of 18, he was first seen watching two siblings playing soccer. Tsurugi visits him in his room in the hospital often.
They both talked to each other outside, talking about their past before his accident happened which made his younger brother felt very guilty.
During episode 14, Kyousuke is shown agitated and worried while watching his brother attempt to walk again with a nurse watching him. Then in episode 15, his brother visits him again, and unexpectedly, Matsukaze arrives to which Matsukaze introduced himself, though Kyousuke dragged him outside.
His younger brother, Tsurugi Kyousuke decided to stay at the hospital even when the match of Raimon started in episode 16. Later, Kyousuke was visited by his old coach and talks a bit, Yuuichi overhears the discussion and is very surprised. It is revealed that Kyousuke had made a deal with Fifth Sector that if Raimon lost the tournament then they will pay for Yuuichi's surgery.
In episode 17, he is seen crying and he is disappointed in Kyousuke that he got involved with Fifth Sector. Kyousuke deeply thinks what he will do. In the end, Kyousuke helped Raimon and Raimon won in the end. Yuuichi was happy to see Kyousuke enjoying the match.
In episode 21, he is seen wishing Tsurugi Kyousuke the best of luck for their next upcoming match in the Holy Road tournament. He appeared again in episode 33 where he was trying to walk with his brother also Tenma was watching them. Although it hurts sometimes, he said that he won't give up just like Kyousuke.
In episode 41, it is said that he will take the surgery, as an unknown person paid for it, which made Tsurugi happy and was about to cry but Yuuichi cheered him up. He is seen watching the final match after that.
- Japanese : Tomoaki Maeno
- English :
- all information on Tsurugi Yuuichi came from http://inazuma-eleven.wikia.com/wiki/Tsurugi_Yuuichi