Vs. Hero Killer Arc

The Field Training Arc is the sixth story arc in Boku no Hero Academia. Each student of Class 1-A chooses a work place and go to their respective work place in order to get field training under the supervision of Pro Heroes at the respective work place.

A Meeting for Trying Out New Names
Two days after the Sports Festival, Izuku is on a train to Yuuei. While on the train, some of the passengers recognize him from the Sports Festival, acknowledging his prowess. At Yuuei, Tenya is running and passes by Izuku, telling him that they should be at least 10 minutes earlier for school. After arriving inside, Tenya tells Izuku that he doesn't have to be worried about his older brother as he will be fine and apologizes for causing him unnecessary concern.

In their class, the students of Class 1-A are discussing the attention they received from the Sports Festival. Class 1-A's homeroom teacher, Shouta, enters, causing everyone to hurry back to their seats. Shouta has fully recovered from his injuries, no longer needing to wear bandages. Shouta tells his students that their Hero Informatics Period will be about formulating their Hero names, much to their excitement. Shouta says that the formulation of their potential Hero names are due to the nominations by Pro Heroes. He says that the nominations from the Pro Heroes this year are more akin to expressions of interest in their potential futures. Shouta shows his class their tally of nominations, saying that the tally of nominations are usually more balanced but this year the attention points to Katsuki and Shouto. Shouta says that regardless of whether or not they received nominations he will be having them go get work-place experience. Shouta says that they did get first hand experience at the USJ unfortunately but he thinks that experiencing the activities of Pro Heroes first hand will prove to be more fruitful training. Soon, Midnight arrives to which Shouta explains to his class that he requested Midnight to evaluate their Hero names. Shouta tells his class that the way their futures end up will depend on the image projected by the Hero names they choose.

Midnight gives Class 1-A 15 minutes to decide on Hero names. After 15 minutes have past, each student starts to reveal the Hero name they chose.

After most of the Class 1-A have revealed their Hero names, only Izuku and Tenya are left (besides Katsuki who needs to change his name). Tenya has struggled in deciding whether to use his older brother's Hero name Ingenium or not (after Tensei asked Tenya to take up the torch due to his legs being completely crippled and thus cannot continue being a Hero). Eventually, Tenya is unable to bring himself to use Tensei's Hero name and instead uses his own name as his Hero name.

Izuku is the last student yet to reveal his Hero name. Izuku reveals his Hero name, causing some of his classmates to comment if he is okay with it, to which Izuku replies that up until now he didn't like it at all. Izuku says, however, that someone came along and changed the meaning of the name making him happy. Izuku reveals his Hero name to be Deku, saying with confidence that Deku will be his Hero name. Katsuki looks on in anger while Ochako smiles at Izuku's Hero name.

In Yuuei's Faculty room. Cementoss informs All Might that a new nomination has just arrived for the freshmen, telling All Might that the nomination is for Izuku. Excited, All Might goes to check who nominated Izuku. As he checks, All Might becomes flabbergasted at the person who nominated Izuku. Back in Class 1-A, Katsuki changes his Hero name to Baron of Explodo-Kills but Midnight comments that the name won't do.

Choices for Workplace Training: Gran Torino Enters the Fray!
After Class 1-A has finished formulating their Hero names, Shouta tells his students that their field training will be one week long. He says that the students who received nominations will get a personalized list of work places to choose from. Shouta gives the students who didn't receive nominations lists that have 40 work places to choose from. Shouta tells his class to choose one work place from their respective lists, saying that they have until the end of the week to make their work place choices.

After school that day, All Might appears in front of Izuku Midoriya as he is about to leave class. All Might and Izuku walk along the corridor. All Might says that Izuku received a nomination, much to Izuku's surprise. All Might tells Izuku that the person who nominated him was Gran Torino. All Might explains that Gran Torino was a Pro Hero who taught at Yuuei for one year and that Gran Torino was his homeroom teacher. All Might says that Gran Torino was a close friend of his predecessor, but now he is in retirement. All Might says that Gran Torino knows about the One For All Quirk which is the reason why he must have nominated Izuku. Izuku notes that even All Might is nervous from talking about Gran Torino, wondering how scary the retired Pro Hero was. All Might tells Izuku that while it is his duty to train him, he should select Gran Torino as his work place of choice and go see what he can learn from him. Before leaving, All Might informs Izuku that his Hero costume has been repaired. Thus, Izuku chooses Gran Torino as his work place to train at.

At the same time in the staff room, Shouta is surprised that some of his students chose the work place that they want to train at already. He looks at Tenya Iida's work place choice which is the Hosu City Hero Office, noting that there were better nominations for him to choose from. The day of the work place field training arrives. Shouta Aizawa is at the station with his class to escort them to their work places safely. Shouta tells his students that while they do have their Hero costumes with them he reminds them not to wear them in public and not to lose them. Shouta tells them to have manners and wishes them luck. As Tenya walks to his train, Izuku tells Tenya that if he needs someone to talk to he can talk to him and Ochako (with her nodding in agreement) as they are his friends. Tenya replies that he will. However, as he walks away, Tenya is shown with a scowl on his face.

After his train stops, Izuku arrives near the work place destination and walks to Gran Torino's home address. Izuku arrives at a dilapidated building. Izuku enters and tries introducing himself but was horrified to find the elderly retired Pro Hero on the floor seemingly dead with blood-like liquid splatter below him. Gran Torino suddenly gets up, shocking Izuku in the process, then he began explaining that he was carrying a plate of sausages with ketchup on them, but fell and got ketchup everywhere. Gran Torino asks the boy his name to which Izuku tells him his name and that he is from Yuuei. However, Gran Torino does not recall nominating him. He suddenly remembers, calling Izuku "Toshinori" in the process, much to Izuku's annoyance. Izuku tries to leave the apartment to speak to All Might on his phone, but Gran Torino asks Izuku to fight him with One For All, saying that he wants to see how well Izuku can handle One For All, wanting him to put his Hero costume on and fight him. Gran Torino once again forgets who Izuku is. Thinking that Gran Torino is playing games with him, Izuku declares to the elderly Hero that he needs to learn how to control his power as soon as possible since All Might is running out of time, telling the elderly Hero that he doesn't have time to be fooling around. Izuku starts leaving, visibly disappointed. Suddenly, Gran Torino jumps and leaps in front of Izuku at an incredible speed, stopping Izuku from leaving. Gran Torino tells Izuku that since Izuku has a goal to learn how to control his power, then he has all the more reason to stay. The elderly Hero asks Izuku to use One For All and fight him.

The Mystery of Noumu Unraveled
At Yuuei, Naomasa meets with All Might. He tells All Might that the Police Force have tried everything to get information out Noumu, however, everything they tried did not work. Naomasa says that they instead looked into Noumu's background through DNA analysis and have discovered that Noumu was once a human with a criminal record. Naomasa explains that the DNA analysis also revealed that Noumu has the DNA of at least four different humans mixed with his own. Naomasa concludes that Noumu is an artificial human made to measure up to multiple Quirks and that having all the DNA in his body as well as his body modified caused Noumu's brain activity to stop. Naomasa tells All Might the real issue is that Noumu's DNA is of primary concern because it contains multiple Quirks. Naomasa says that Noumu could not have acquired multiple Quirks in any way (unless Noumu acquired the Quirks through advanced genetic familial permeation). Naomasa theorizes that someone with a Quirk that can grant Quirks is behind Noumu's acquisition of multiple Quirks. All Might becomes concerned.

The Training Begins
In Gran Torino's apartment, Izuku puts on his Hero costume (which has not only being repaired but redesigned as well) and faces Gran Torino in a mock battle. However, Izuku is unable to keep up with Gran Torino's incredible jumping speed and is constantly hit. Izuku prepares to use One For All and predicts that Gran Torino will attack him from behind. Izuku's prediction turns out to be correct, allowing Izuku to get into position to hit Gran Torino, but Gran Torino pushes Izuku's arm out of the way. The mock battle ends with Gran Torino telling Izuku that he is too rigid and his awareness is disjointed which are some reasons he is unable to use One For All properly. Gran Torino explains that Izuku's main problem is that thinks One For All is special. Izuku asks Gran Torino to explain what he means, but the elderly Hero tells Izuku to figure that out for himself and goes to eat something.

In the borough of Hosu City, Tenya in his Hero costume goes on patrol with one of the Pro Heroes from the Hosu City Hero Office. Tenya ponders that the Hero Killer Stain was the one who critically injured his older brother Ingenium, deciding that he himself will chase after Stain, unable to forgive the Hero Killer for his crime, declaring that he will avenge his older brother.

Meanwhile, in the Villain Alliance's hideout, Black Mist brings Stain to the Villain Alliance hideout to meet with Tomura Shigaraki. Stain sees that it was Tomura's Villain Alliance that raided Yuuei and that Tomura wants Stain to join his Villain Alliance. Stain asks what Tomura's goal is, to which Tomura replies that he wants to murder All Might and destroy anything that is unsatisfiable to them such as some of the students from Class 1-A. Seeing that Tomura is being childish, Stain says that Tomura is being foolish and that there is no sense in bloodshed without a cause. The mysterious voice on the monitor orders Black Mist to allow Stain and Tomura to continue talking, saying that Tomura's meeting with Stain (an experienced infamous villain) will stimulate Tomura's growth.

Back in Gran Torino's apartment, Izuku ponders deeply about his problem with controlling One For All that Gran Torino pointed out. Izuku suddenly figures out what Gran Torino meant; that he has been thinking of One For All as a trump card which has made him "rigid" in its use (unable to use it properly) and that in order to control One For All properly he must be "flexible" (thinking of One For All as a simple body function). Izuku goes to write this crucial discovery down in his notebook, dumbfounded that he didn't realize the problem sooner when it was in front of him all the time. Izuku decides to drill in the repetition of thinking One For All flatly (as a simple body function). Gran Torino is outside and overhears Izuku finding the solution to his problem in controlling One For All. Gran Torino ponders that Izuku's thought process is flexible and commends All Might for finding an excellent successor.

Characters Introduced

 * Crimson Riot
 * Gunhead
 * Gran Torino
 * Normal Hero
 * Best Jeanist (First Appearance)
 * Force Kind
 * Uwabami