My Hero Academia Wiki
My Hero Academia Wiki

Yeah, Just Do Your Best, Ida! (いいぞガンバレ (いい) () くん! Ī zo Ganbare Īda-kun!?) is the twelfth chapter of Kohei Horikoshi's My Hero Academia.


With the news that All Might has entered U.A.'s faculty, the press has been trying to get a scoop on All Might by going to U.A. and asking students and teachers regarding information on All Might but their attempts fail due to the infamous "U.A. Barrier" (a high tech security gate) keeping them out.

In Class 1-A, Shota Aizawa announces that their class needs to pick a class president. After holding a vote, Izuku Midoriya is elected as the class president and Momo Yaoyorozu becomes the vice president.

At lunch in the mess hall, Izuku, Ochaco, and Tenya sit together and have lunch. Izuku is unsure about being class president but Tenya asserts to Izuku that he will be all right. After Ochaco notes Tenya's formal attitude, Tenya goes on to explain his history; that he comes from the prestigious Ida Family, a family that has been in Heroics for generations. Tenya goes on to say that he aspires to be like his big brother "Turbo Hero: Ingenium" who is a famous Hero in his family.

Suddenly, U.A.'s siren goes off, indicating that someone has infiltrated U.A. The students in the lunch hall evacuate in a messy fashion. However, Tenya sees that the mass media is outside and realizes that the siren wasn't indicating an intrusion. Tenya asks Ochaco to make him float and jumps into the air. While in the air, Tenya boosts himself onto the emergency exit board. Tenya yells out to the evacuating students to calm down and says that it is just the press, causing the students to stop their panicking and thus stopping the chaotic evacuation.

Back in Class 1-A, Izuku makes an announcement; that he is resigning as class president and declares Tenya to be his successor, saying that Tenya is the right choice after seeing his actions in the lunch hall. Thus, Tenya Ida officially becomes the class president of 1-A.

Meanwhile, the U.A. faculty see that most of the U.A. Barrier has been disintegrated, indicating that someone did indeed infiltrate U.A. They wonder if an ordinary reporter could have infiltrated the academy. However, Principal Nezu declines that possibility, saying that an element of evil instigated the infiltration and he wonders if the infiltration was intended to be a declaration of war.

Chapter Notes

  • Izuku is elected class president but later chooses to appoint Tenya as class president.
  • U.A. receives a declaration of war from an unknown person.



Appearances for Chapter 12
Super Moves

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