Outside of his hero armor Tensei looks much like his younger brother Tenya, with square features and short, black spiked hair. A differing feature is that he possesses arrow-shaped eyebrows and has a slightly longer face.
Similar to his brother, he possesses engine exhausts extruding out his body, but out of his forearms.
Compared to his younger brother, Tensei is far more laid back with an easygoing attitude. When he took up the hero mantle of his family his image for himself was that he wanted to 'be cool' and be the type of hero that helps others when they are in need. He was joyful that his younger brother admired his work as a hero as a result.
He also believes that being able to rescue people quickly is what makes a great hero, and that people want to be rescued in a hurry and value being saved quickly. He also values teamwork, believing that having a large group where everyone serves a specific purpose is the easiest way to rescue people quickly.
Although working as a Hero, he is lenient on laws. Unlike his younger brother, he doesn't scold others for using their quirk in public but instead helps them develop them. He also suggested the notion of taking on a sidekick who didn't have a Provisional Hero License which is against the law, citing that he could 'earn his qualification little by little'.
At some point, Tenya asked his older brother what motivated him to be a Hero, to which Tensei replies that he wanted to be a 'cool' type of Hero that helps others when they are in need. When Tenya speaks of his admiration for his older brother, Tensei was joyful that Tenya looks up to him and ponders that he must be a great Hero if Tenya admires him.
Some time after this, he spent a few days tracking down a speedster villain under the effects of Trigger. He struggled to take him down due to the villains abilities to be able to manoeuvre sharp turns. Tensei could not perform the same feats and crashed, but survived the situation due to his Costume containing Parachutes and Airbags.
A short while afterwards, Tensei went for his daily jog and ran into Kouichi Haimawari who was illegally using his quirk to practice it's manoeuvrability. Instead of arresting Kouichi, he admired his quirk and gave him help to be able improve Kouichi's issues with manoeuvrability. After seeing him use his quirk to great effect, Tensei gave Kouichi his business card inviting him to work with him in the future due to enjoying the company of Speed-related quirk users. He was also not at all phased by Kouichi's lack of Liscence and cited that it wouldn't be a problem.
On a night a few days afterwards, Tensei ran into the Villain using Trigger on a runway and tricked him into travelling faster than it would be to safely manoeuvre and trapped him into a Road-block where he would crash matt into Tensei's sidekicks trap. It was then revealed that the Trigger Villain possessed wings and took flight, to Tensei's surprise. He then spread his team out throughout the city to try and take down the Trigger Villain to little effect. Tensei started to get close to him when he was almost ran over by a car and had to stop the chase. Tensei then saw the trigger villain be sideswiped from a nearby alleyway and be taken down by two Vigilantes. He recognised one of the quirk users as Kouichi but not arrest them for vigilantism.
The next day he ran into Kouichi on a job and thanked him for his work the previous night. He then asked for his business card back, qouting that everyone on a team has a specific purpose and that Kouichi had served his. Tensei then told Kouichi that he had what it takes to be a great hero. 
Tensei is briefly mentioned by Tenya, when talking about his family.
Tensei is heavily injured by Stain and left for dead. However, the police find him and he is taken to the Hosu General Hospital for emergency treatment. Tensei undergoes an operation that saves his life. Afterwards, Tenya immediately barges into the room to see his older brother. Tensei, despite being weak, speaks to his younger brother, apologizing to Tenya for being unable to be the role model that Tenya sees him as.
Tensei admits to Tenya that he can no longer feel any movement in his legs and says that this is probably the end for Turbo Hero Ingenium. Tenya refuses to believe this, unable to stand the idea that his brother will no longer be a Hero. Tensei tells Tenya he cannot stand the idea either and asks him to carry on the torch; use Ingenium as his Hero name.
Quirk and AbilitiesEdit
"Unknown-Named Engine Arm Quirk": Tensei's Quirk manifests in the form of engines in his forearms, allowing him to create blasts and shoot himself forward at turbo speed. He hovers a foot or so off the ground and relies on the propulsion from his arms to move at super speed, and has been seen using his quirk to move faster than cars in a chase sequence. Unlike his brother Tenya, his quirk doesn't seem to have gears and can hit Max speeds in an instant, however has stated that he finds it difficult to break and turn while moving at top speeds and compensates by installing Air-Bags in his Hero Costume. 
Tensei has a strong bond with his younger brother, Tenya. When he was hospitalized at Hosu General Hospital, Tensei apologized to Tenya for being unable to be the role model that he look up to. Tensei asked Tenya to take up his Hero name, Ingenium, indicating that Tensei has a great level of trust for Tenya.
- (To Tenya Iida) "People who find a lost child and then take him to a lost-child center...I've always thought those sorts of people were the coolest."
- ↑ Boku no Hero Academia Manga: Chapter 54
- ↑ Boku No Hero Academia Vigilantes : Chapter 7
- ↑ Boku no Hero Academia Manga: Chapter 44
- ↑ Boku no Hero Academia Manga: Chapter 45
- ↑ Boku No Hero Academia Illegal Manga: Chapter 7
- ↑ Boku no Hero Academia Manga: Chapter 54, Page 4
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