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Pandora’s Box

A BakuDeku La Corda d’Oro AU because leaving me in a discord chat about BakuDeku gives me too many plot bunnies *sides eyes this entire blog*

To those who don’t know La Corda d’Oro, it’s an anime/manga about a school with a normal and a music track education. In the original, a girl in the normal track got dragged into joining the school music competitions by a fairy who gave her a magic violin that anyone can play as long as they believe.

In this AU, Deku already knows how to play the violin. He grew up with Kacchan who also plays the violin. Due to an accident when he was in middle school, Deku’s entire right arm is injured and although he will be able to use it in everyday life after physical therapy, according to the doctor, he will never be able to play the violin again.
Going into high school, while Katsuki gets into the music track, Deku enters the normal track of the same school in his blind hope of still being able to play the violin at some point and transfering into the music track later. Deku’s dreams are answered when he meets fairy!Allmight (lol) who gives him a magic violin that anyone can play as long as they believe. Luckily, if there’s anything Deku can do, it’s believing in his dreams.

I have a rough outline of this story up til the end already (so rough it’s missing chunks hahahuhu) so I might write a fic at some point lol. If I can’t write it I’ll probably just dump the outline here because thE ANGST IS REAL and I like sharing angst ¯\(ツ)/¯

Several random osomatsu-san headcanons

  • Osomatsu, even though he can come off as an unreliable person, is actually the sibling that all of the other matsus go to to talk about their problems and concerns
  • Choromatsu scolds all of them and tells them to help with the house chores, but ends up doing most of it by himself. Jyushimatsu is the only one who willingly and enthusiastically helps but most of the time he causes more trouble than help
  • Ichimatsu knows how to play the guitar
  • Jyushimatsu and Karamatsu are the most physically fit
  • Todomatsu paints his nails according to his character color, and sometimes he gets Karamatsu and Jyushimatsu to join him as well
  • Osomatsu and Choromatsu are the most “responsible” of the siblings, in the sense that the others usually put them in the leader role
  • Osomatsu always sleeps last, Ichimatsu sleeps first
  • Todomatsu wakes up the earliest, Ichimatsu wakes up the latest
  • Todomatsu and Karamatsu take the longest in the bathroom to get ready for the day, Osomatsu is the quickest
  • Ichimatsu sometimes watches anime with Choromatsu
  • Next to Ichimatsu, his cat likes Choromatsu and Jyushimatsu the best
  • Jyushimatsu always accompanies Choromatsu when he goes to buy groceries, and he’s always riding in the cart like a kid
  • Todomatsu is the most fashionable

more osomatsu-san headcanons that no one asked for

  • They don’t really talk about it but they all unanimously worry about Ichimatsu the most
  • Even though Totty is the youngest sibling, he has this weird sense of duty to look out for Jyushimatsu and Ichimatsu
  • Choromatsu is the mom sibling, so he’s constantly telling them to take care of themselves
  • Karamatsu is the second to the last sibling to go to sleep because he usually picks up after everyone, like putting things away so the room is at least a little bit more tidy
  • Osomatsu is the last to sleep because he likes to make sure everyone is warm and has enough blanket
  • Ichimatsu sincerely doesn’t have a favorite sibling because  he likes them all, but there are those who annoy him more than the others
  • Jyushimatsu used to go on morning jogs by himself but when Karamatsu found out he decided to tag along which is why they’re the most physically fit of the matsus
  • Choromatsu is garbage and probably listens to Vocaloid though
  • Totty thinks that the most reliable sibling is Osomatsu
  • Osomatsu senses that Totty thinks he is the most reliable and tries his best not to let him down
  • Osomatsu is also the best at breaking up sibling fights

I am back with more osomatsu-san headcanons

  • Osomatsu does absolutely nothing with his hair aside from the occasional trim when he’s feeling up to it
  • Karamatsu does his hair in a way that makes it look like it’s a neat but maintained bedhead and uses hair wax to style it up
  • Chroromatsu’s bangs are always immaculately straight and he cuts it himself
  • Ichimatsu just doesn’t give a damn about his hair
  • Jyshimatsu gets his hair cut by Choromatsu and it starts out as immaculately straight bangs as well but as days pass it gets messier and messier but Choromatsu does his best to neat it out for him from time to time
  • Todomatsu’s hair is the fluffiest and he’s got this k-pop sort of hair style going on and he uses hair mousse to style it
  • Osomatsu’s got asthma, don’t make him run please
  • Karamatsu’s the most flexible matsu
  • Choromatsu looks like the kind of guy you can beat up but if you piss him off he’s got one hell of a punch
  • Ichimatsu gets a lot of surgical masks from his brothers, and more often than not they’re cat themed which he secretly appreciates a lot
  • Jyushimatsu is the most physically affectionate out of all of them
  • Todomatsu does not like big dogs
  • If they went to a horror house its Osomatsu and Jyushimatsu who aren’t scared at all, Karamatsu and Ichimatsu are scared but manage to get out of the horror house with most of their dignity, but it’s Choromatsu and Todomatsu who are nervous before they even go inside
  • At an amusement park, Karamastu and Jyushimatsu like wild roller coasters, Osomatsu and Ichimatsu like the bumper cars, Choromatsu and Todomatsu like the giant ferris wheel