Iida Brothers

"Ingenium is to Iida what All Might is to me."

- Izuku understanding Tenya's admiration for his brother.

Iida Brothers is the family ship between Tensei Iida and Tenya Iida from the My Hero Academia fandom.

Episode 9
Episode 9 is the first time Tensei was ever introduced, and he's introduced by Tenya

After the class decided to take Tenya’s suggestion on using voting to pick the leader, Tenya ended up in 0 Votes because he choose to vote Izuku rather than to vote himself. At lunch, Izuku told Tenya and Ochako that he feels like even though he’ve been chosen as the class rep, he didn’t know if he qualified for it or not. Ochako replies by saying he is qualified, and Tenya assure Izuku that it’ll be fine. Turns out, Tenya is the one who voted for him along with Ochako. Even though he want to be the class rep, he trusted Izuku more to become the class rep, thinking Izuku is more suitable and confessed that he merely did what he judged to be correct. Ochako and Izuku immediately notices that Tenya is a rich person, when Ochako asks if he is a rich person, Tenya immediately changes his expression into a kind of unhappy one, telling them that he tries to change how he talk because he didn’t want to be called that and sighed when Ochako and Izuku stares at him awkwardly.

Tenya tells them about his family has been heroes for generations, and he’s the second son. Izuku and Ochako let out an amazed ‘What?! Wow!’, and then Tenya mention about Tensei, or also known as; The Turbo Hero, Ingenium. He asks them if they know about him, and Izuku excitedly says that he does know about him, telling all the information he know about Ingenium. And his expression quickly changes after he realizes something; Tenya straight out telling them that Tensei is his elder brother and Izuku screams “That’s amazing!”. Tenya tells them that Tensei is a likeable hero who honors the rules and leads people, that he set his sights on being a hero because he want to be just like Tensei. However, he think that it’s still too soon for him to lead others. Because he thinks that, unlike him. Izuku realized the point of the practical portion of the entrance exam, so he thinks that Izuku is more suitable for that job. After Ochako points out that it’s the first time that she see Tenya smiles, Izuku realizes that Ingenium is to Tenya what All Might is to him.

Suddenly, a bell rang and announcing that there’s someone trespassing on school grounds. Izuku, Tenya and Ochako quickly run to the emergency exit, but due to the crowded hallways and panicked students, Izuku got separated far from Tenya and Ochako. Tenya got very close to the point his cheek got pressed on the window and he finds out that the press is the ones who trespass, so he tries to calm everyone down but ended up being pushed even further to the window and got separated from Ochako. Tenya tries to approach Ochako while thinking of what Izuku or his brother would do in this situation. After he got floated by Ochako’s quirk, he use his ‘Engine boost’ to go over the emergency exit door, on the way, Izuku shouts Tenya’s name in worry. Tenya hits the wall in the emergency exit sign people pose and told everyone to calm down and then announcing that it’s just the press that trespassing.

Episode 24
In Episode 24 or also known as Season 2 Episode 11, after he won the match against Ibara, Tenya tries to contact his brother to discuss his victory. However, Tensei is off on a mission and sends his brother to voice mail. Tensei is searching throughout Hosu City and eventually locates and confronts the Hero Killer: Stain

Episode 25
In Episode 25 or also known as Season 2 Episode 12, with the festival concluded, the awards ceremony begins. The first, second and third place contestants take the podium, but Katsuki is restrained due to his wild behavior, still furious that Shoto had thrown the match. Fumikage shares third place with Tenya, but the latter had to leave to check on the condition of his injured brother, Tensei. All Might arrives the distribute the awards, but he is annoyed when Midnight ruins his introduction, though she apologizes. Even so, he distributes medals to each of the three contestants. Tenya arrives at Hosu General Hospital to check on his brother's condition. He rushes to Tensei's side, where the heavily injured latter apologizes to him for failing as a role model.

Quotes
"Ingenium is to Iida what All Might is to me"

- Izuku understanding Tenya's admiration for his brother.

"What would Midoriya… or my brother… do in this situation?"

- Tenya thinking how to calm down all the UA students.

"I'm a novice. I can't measure up to their standards! Be that as it may... I have to stand up! Never again! Never again will they... or my brother... leave me behind in the dust!"

- Tenya to himself, in regards to Tensei, Izuku and Shoto.

"Ingenium the Hero… will dash across the land to take a lost child by the hand."

- Tenya to Izuku in.

Fanon
The fandom appreciates the brothership and the cute admiration Tenya have for Tensei. A fan made a Tumblr post about a theory that Tensei is actually Tenya's father, and not older brother.

Fandom
FAN FICTION

Trivia

 * The two's quirk is powered by two different kind of juices; While Tenya’s Quirk is powered by orange juice, Tensei's Quirk is powered by grapefruit juice.