TodoBaku

TodoBaku is the slash ship between Shoto Todoroki and Katsuki Bakugou from the My Hero Academia fandom.

Canon
Katsuki and Shoto start out as rivals, Katsuki seeing Shoto as one of the people he needs to beat on his path to becoming No.1 and Shoto who is never shown to be intimidated by Katsuki. In the first team battles, Katsuki is surprised and angry seeing Shoto's effortless win after losing his own battle to Izuku. When he was yelling with tears in his eyes to Izuku, he yells "As I watched the ice guy, I thought: "I can't beat him!". This started off Katsuki and Shoto's mostly one sided rivalry from Katsuki's side and Katsuki starts seeing Shoto as a proper rival.

Shoto and Katsuki only have brief interactions during the U.S.J Incident, together with Izuku and Eijiro they go to help All Might. After the fight with the nomu, Shoto makes a comment to Katsuki about how the whole school wasn't attacked if all the Pro Hero teachers were here.

Just before the Sports Festival begins, when Shoto makes his declaration of war against Izuku, Katsuki (and the rest of the class) is watching them. When the first part of the Sports Festival starts and Shoto starts out with freezing the ground but Katsuki and some others dodge and he declares he won't get him get away that easily. Later when Shoto starts getting really out on front, Katsuki says that he won't let Shoto get ahead of him. When Katsuki finally catches up to Shoto, he says he shouldn't have declared war to the wrong person (Aka he should've been seeing Katsuki as his greatest rival). They continue running while attacking each other and stay in the lead until Izuku cuts in and gets ahead of them. They then stop fighting to catch up to Izuku but lose. During the Calvary battle they don't interact much outside of Katsuki going after him and putting Mina on his time to deal with Shoto's ice.

While Shoto is talking about his past to Izuku, it is shown that Katsuki is eavesdropping on them and is surprised at Shoto's past. During Izuku and Shoto's battle, Katsuki is paying a lot of attention and makes his own analysis of Shoto's quirk. After Katsuki and Shoto win the semifinals, Katsuki and Shoto look/glare at each other immediately. Before their battle, Katsuki accidently walks in Shoto's waiting room and is furious at how Shoto barely bats an eyelash to him and blows up the table, asking him where he's looking at and how's it's no way to treat his opponent in the final. When Shoto immediately begins talking about Izuku starts asking about Izuku it makes Katsuki even more furious. Katsuki asks him who the hell cares about Izuku and Shoto's family drama and his feelings. Katsuki says he doesn't care about any of that and that Shoto should just use his fire against him as well and walks away. Katsuki is excited about the chance to beat Shoto indesputably while Shoto uses his full power.

Their battle starts and Katsuki has the upper hand. When Shoto's father Endeavor yells at him to use his left side, Shoto looks at his father, making Katsuki angry at him being distracted. Shoto doesn't use his fire because of his father. Katsuki tells him to stop screwing around and asks if he isn't strong enough for his fire. Katsuki feels like he's being made a fool out of and tells Shoto he can't get an undisputable first place if Shoto underestimates him. He then says to him: "There's no point if I can't get higher than Deku (Izuku). If you have no intention of winning then don't stand before me! Why the hell are you just standing there, dammit!" After Izuku encourages Shoto, Shoto starts emitting flames and Katsuki gets excited. Katsuki thinks that Shoto should only focus on him when he's standing in front of him. Just before Katsuki does his final attack, Howitzer Impact, Shoto thinks about his past again and stops emitting flames and just takes Katsuki's attack. After the smoke settles, it becomes clear that Shoto got blown out of bounds and is unconsious. Katsuki is declared the winner, but Katsuki is furious when he realizes Shoto didn't use his flames. He runs up to Shoto, grabbing him by the collar and yelling at him with an angry but despaired voice: "Hey, stop screwing around! Didn't I tell you there was no point, dammit? To get first place like this! Like this? Like..." Katsuki then passes out next to Shoto due to Midnight's quirk.

During the award ceremony Katsuki had to be restrained on stage and refused to accept the victory because he didn't win from Shoto's full power. Katsuki most likely felt like Shoto didn't see him as a proper rival, while Katsuki did see Shoto as a strong rival and the most skilled in class next to him. While Katsuki was frustrated at first seeing Shoto's skill, Shoto wasn't focused on him even during the fight and was focused on Izuku (who he already felt somewhat both inferior and superior to) and his father. In Katsuki's eyes, Shoto saw Izuku as more of a rival than Katsuki, most likely feeding more into Katsuki's sense of inferiority to Izuku.

However, Katsuki seems to have let go of his grudge as the two were seen having a normal conversation during their training at the lodge cabin. In other words, Katsuki and Shoto appear to be neutral with each other, with the latter not hesitating to interact with Katsuki in a relaxed way.

At camp where the League of Villains attacked to obtain new members we see when Todoroki finds out bakugou is one of the targets he immediately puts himself responsible for Bakugou and became his main protector from the league however when Bakugou refuses him and goes off running towards the villains todoroki still steps in to protect him however he tells him exactly why he’s doing it and he should be careful bakugou starts yelling at to not tell him what to do we see this a lot in the anime and todoroki does not really tell anyone else what to do but bakugou this might show that he actually cares for bakugou and does not want him to do anything stupid that would get him killed or in trouble.he kinda acts like a protector in a way to bakugou later in the scene we see bakugou step in to protect todoroki from the villain even though he’s the one targeted this shows that bakugou cares for todoroki in the same way that todoroki cares for him

In a Season 2 CD Drama, Bakugou and Todoroki run into each other, while the rest of the class goes to a mall as a group (where Deku runs into Shigaraki). While they are having their usual banter, a stranger walks up to them and asks them if they are from U.A. The two start to realize that the stranger is, in fact, a villain. Todoroki attempts to get both of them away from the villain, but they both learn that the villain has a quirk that can make someone, when targeted, stick to anything they touch for as long as the quirk is activated. The villain puts the two in awkward positions and takes pictures of them that he says he will upload to the internet. While Bakugou continues to struggle, Todoroki remains calm. Later on todoroki thinks of a plan and plays along to the villains game bakugou picks up on it and once the villain was distracted they head butted him to have the villain to release them from his quirk and run off

In season 4, Todoroki could be seen making remarks about Provisional License Classes to Bakugou. In Chapter 241, Bakugou and Todoroki are interviewed about their fight with villains after getting their Provisional Hero Licenses. When asked if they are friends, Bakugou is quick to deny; Todoroki states that he considers him and Bakugou to be good friends.

We also see that Bakugou and Todoroki have a newfound respect for one another as they can work together in unison, combining their quirks.

Fandom
FAN FICTION
 * Shouto/Katsuki tag on FanFiction.net
 * Shouto/Katsuki tag on FanFiction.net

DEVIANTART

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Variations

 * KiriTodoBaku refers to the ship between Eijiro Kirishima, Shoto Todoroki, and Katsuki Bakugou TodoBakuKiriDeku refers to the ship between Izuku Midoriya, Shoto Todoroki, Katsuki Bakugou, and Eijiro Kirishima
 * TodoBakuDeku refers to the ship between Izuku Midoriya, Shoto Todoroki, and Katsuki Bakugou
 * TodoMomoBaku refers to the ship between Momo Yaoyorozu, Shoto Todoroki, and Katsuki Bakugou
 * TodoBakuKiriDeku refers to the ship between Shoto Todoroki, Katsuki Bakugou, Eijiro Kirishima and Izuku Midoriya
 * Todokacchako refers to the ship between Shoto Todoroki, Katsuki Bakugou and Ochako Uraraka