EraserCloud

EraserCloud is the slash ship between Aizawa Shota and Oboro Shirakumo from the My Hero Academia fandom

Canon
Oboro Shirakumo and Shota Aizawa met during their student days at U.A., where they train to become heroes beside Hizashi Yamada. Their bond grew further in their second year in U.A., and because of the nature of Aizawa's quirk while Oboro's allows him to fair well in battles and rescue missions he didn't believe in himself or his erase quirk. Oboro on the other hand did believe in Aizawa and from time to time the two and Yamada would talk about the Hero Agency they hope to start up together after they graduate as heroes.

One day when Oboro came to class through the window, he tells Aizawa that he had found his umbrella, and Aizawa, surprised, asks him if there was something under the umbrella (the cat who he had left the said umbrella), but before he could finish talking, Mic interrupts them. Oboro can then be visualized with the same cat that Aizawa had given him the umbrella to. At the end it can be visualized that Oboro had turned his gaze to Aizawa, giving him a sincere smile.

In another scene they can be seen having lunch while Aizawa had told Oboro about how his isn't very surprising with his quirk, and that it only surprised people and after finishing, Oboro asked Aizawa what would happen if he tripped villains or played as a fighter, since quirks could decide the outcome of a fight and that with Aizawa's Eraser quirk he could make villains fight under the same conditions, sounding like a compliment. But then Aizawa says that he was not a very good fighter and asks what he would do with a big man (villain), but after finishing what he said, he tells Oboro not to feed the cat since the food that Shirakumo had was bad for the animal (obento).

Then Midnight crosses paths with Aizawa and Oboro, who were having lunch together on the spanking, and explains to them about her new daring but practical outfit, and after the explanation she notices the cat that the boys had and asks about it, Oboro says that he and Shota were taking care of him which Midnight tells them to give him the kitten, since they couldn't bring animals to school. Although they were given the cat, Midnight had later retired telling them that they had to find a place to leave the animal, but they both knew Midnight's other intentions, keeping the cat. Aizawa then asks Oboro if they hadn't been irresponsible for giving the living being to "the first girl they had come across", but Oboro says to calm down, since Kayama (Midnight) was Kayama, and that Sushi (the cat) would be fine, other than the two of them weren't in a position to keep it for the internships. After chatting for a bit, Kayama reappears, but this time in U.A.'s uniform presenting them with a video of '"poop", to which Oboro asks if he had gotten there just for that, which Kayama denies and says that he already had a perfect place for animals that have nowhere to go, and Aizawa tells her not to worry, since he and Oboro didn't pick up stray animals every day, but Midnight said he didn't mean that, but if the boys were looking for internships, they could assist her boss willing to take who be.

After catching a villain, Aizawa had been the only one who had not been able to "smile after catching the villain", as Aizawa understood, and he had told that to Oboro while he was showering, to which he says that he always had to remain calm, continue and not freeze, and that even if he screwed up, Aizawa only had to smile as always, according to Oboro's motto, to which Aizawa interjected saying that he "did not smile like always", to which Oboro had to agree with that. Aizawa then receives a message with a large number of photos from Midnight with the cat that Aizawa had collected and he, happily, began to review them all and at that moment Shirakumo comes out of the bathroom affirming the smile that Aizawa was doing at that moment, which Aizawa a little blushing said that he was not smiling at all. Oboro sits next to Aizawa and asks him what he would do if the villain reappears, Aizawa replies that he did not know, since he was puzzled because the villain could make smoke and that if Aizawa got close,his eyes could be irritated, and if he was away from the smoke, it could block his vision. Oboro proposes to lend them his goggles so that he could protect his eyes and get closer to the villain. After the two defeating the villain again together, the teacher congratulates them saying that the two of them "almost make up a superhero".

The next day, Mic points out to Aizawa saying that the goggles that he had, looked like the ones Yamada had and Oboro then puts his arm behind Aizawa saying that they were both promoting as a team, to which Aizawa denies saying that the goggles were only to protect his eyes. Later, when their teacher mentions that for the training they were going to form pairs, Shirakumo asks if he and Aizawa could team up, since they were both doing the internships together, the teacher agreed telling the others that if they had in the same situation, they could prioritize [Aizawa and Oboro]. After checking the students, the teacher notices the two boys saying that they are more in the technical and subtle movements, but then Sensoji appears and proposes to Aizawa to fight and then Oboro appears and tells him that they accepted the challenge by betting their glasses. Oboro then told Aizawa that the glasses symbolized their friendship and that they had to defend them at all costs, and Aizawa only asked what was so funny about that. After winning Sensoji's bet, the teacher had told them that both of them had complemented their quirks very well and that they had to continue like this, then he follows Sensoji who was leaving the place and Oboro can be seen telling to Aizawa who believed what the teacher had said had been a compliment to both of them.

Years after Aizawa became a pro hero he later a teacher at U.A. with Yamada. Due to him wanting to help train the next generation of heroes while seeing his younger self and Oboro in some of his students. One day after a villain named Nemuri, who turns out to be a Nomu, was caught, Aizawa is told that the body and quirk that was used to create Nemuri was Oboro's corps. Aizawa and Yamada were shocked by this discovery, and with faith that Oboro is somehow still there the two interrogate Nemuri. To make sure that Nemuri doesn't use his shadow portal quirk to esacpe, Aizawa uses his erase quirk on him as he and Yamada talk to the Nomu like he is still Oboro. To help awaken Oboro's sup-conciseness from within Nemuri Shota reminds Oboro of the dream they shared with Yamada before he offered him his googles, to reference the day Oboro had given Aizawa his before the two stared to wear a pair of googles each. For a brief second Oboro's face appeared in Nemuri's shadow cloud-like head, he manages to say the word "hospital" before Nemuri shut down to keep Oboro from saying anything else. Thanks to the lead Oboro was able to give Shota and Hizashi, the heroes were able to find the very hospital that the League of Villains are using to create their Nomus. Before Aizawa had left the prison with Yamada, he makes the request to not have Oboro's family know what has become of him.

Fanon
They're mainly shipped from their moments together in My Hero Academia Vigilantes and their contrasting personalities. After the main manga series revealed that Nemuri was once Oboro, fans began to create Oboro-Nemuri fanart for the ship that commonly as Shota refusing to give up on his friends and tries to find away to bring Oboro back from within Nemuri, as well as the controlling hold All For One has on the Nomu. There have also been a few fanart that features to the two as cats, to reference the cat the took care. In some AUs of the ship fans have Oboro surviving the tragic event that took his life.

Fandom
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WIKI
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Trivia

 * Their ship name comes from the nature of their quirks and their hero names.