What if non-hero AU Hisashi was in the Yakuza and sent lil Dk to...

@sewingrose11
Sewingrose 🍰💥🥦@sewingrose11
69 views Aug 05, 2026 ~6 min read
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What if non-hero AU Hisashi was in the Yakuza and sent lil Dk to the preschool Shoto is going because he wants to get close to Enji and childhood friends TdBkDk?

(And then the kidnapping happens)
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Back when it all started Inko used her telekinesis to knock over casinos by cheating the games.

She had a small crew with Mitsuki and Masaru and the three of them are all in a casual thing.
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Then she is caught at a casino in the act by a Yakuza man named Hisashi and he’s fascinated and intrigued by her and does not turn her in but instead helps her get away with her winnings.
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They start dating and it’s a whirlwind affair and Mitsuki warns Inko about getting in too deep to fast but shortly Inko discovers she’s pregnant by him.
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Mitsuki is a few months along with a baby herself and they talk to each other and agree it’s time to retire to a more normal life.

Hisashi says he will not leave his job but he will provide for Inko and the baby and might get involved when the child is older.
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So Inko and the Bks raise their two sons until when they are both 4 they are approached by Hisashi and says he wants to enroll Izuku into a private and exclusive preschool.

“Why?” Inko asks.
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Bc the man whose business Hisashi is seeking to overthrow is sending his youngest there and it would be a way to keep a close eye on them if Hisashi is also sending his son. Maybe his son can also befriend a certain young boy?
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Izuku says he’ll only do it if Kacchan can come too! And well Hisashi can work with this and does send both boys to the preschool where they soon set their sights on lil Shoto and work to befriend him. They don’t know why Dk’s dad suggested he would be a good friend, but he is!
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And oh the three young boys bond & play with each other so well. But all that changes when they discover that Dk is quirkless! Shoto doesn’t see why this has to change their friendship but Bk feels it does and starts to distance himself from Dk and Shoto too for that matter!
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Bk sulks and refuses to talk to either of them and eventually lil TdDk stop trying to talk to their former friend.
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But then one day as they are lining up to leave the school, waiting for their pick-up a strange man none of them have seen before says he’s here to take lil Dk to see his father. But Dk is supposed to invite Shoto over to play today! Well he can come along too.
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And maybe he has a hypnotism quirk because he gets both young boys into his car.

The only one who saw what went down is little Bk who thinks nothing of it at first until he sees Inko frantically talking to his parents that night that Izuku never showed up at home!
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And Bk knows exactly what happened and feels overwhelmed with guilt, he could have stopped this, he could have saved them. So he demands Inko take him to see Dk’s father so Bk can tell him exactly what happened and plead with him to get them back.
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Hisashi is scary when Bk meets him but Bk marches right up to him and says he needs to get TdDk back and Bk will do whatever he needs to to get them both back.
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Hisashi listens to Bk’s story and figures out who took the kids and sends his men into an elite rescue mission and while that happens he comforts the boy who is crying with guilt for being the reason TdDk were taken.
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It takes a week but finally Hisashi’s men are able to bring back the two kids, relatively unharmed, though the same can very much not be said for those who kidnapped the boys.
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And Enji is overwhelmed with gratitude when Hisashi brings Shoto to him and says he’ll grant Hisashi one favor and Hisashi seeing a golden opportunity wants to arrange an engagement between Shoto and Izuku, why they get along so well already and will be just perfect together!
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Enji feels some kinds of ways but agrees and so TdDk are arranged to be married!

But what about Bk?

Well the thing is Hisashi sees a potential future bodyguard for his quirkless son in Bk and decides to start training him up on the skills he needs.
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And Bk is so overwhelmed with guilt over TdDk getting kidnapped he agrees without hesitation and throws himself into being the best possible bodyguard for them.
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Then when Bk is 13 Hisashi has him swear an oath that he will protect TdDk with his life and Bk swears it without hesitation.

When Dk eventually hears about this he is like “Well that just means Kacchan is gonna be married to us too!”
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And the three of them keep going to fancy private schools and Bk starts acting more and more openly as the bodyguard for the two of them. He’s always tasting their food first to make sure it’s safe or more likely cooking all their meals himself.
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TdDk are assigned to a two room dorm and oh it only makes sense to assign Bk there too! And they set it up so there is a BIG bed in one room along with a smaller bed and all their desks and stuff are in the second bedroom.
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The big bed is for TdDk to sleep in with Bk taking the smaller one but he is told he can always join them no matter what and he slowly starts taking them both up on this and joining them in the bed.
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Bk hears TdDk always say he belongs with them as much as they belong with each other but he knows pretty worthless words when he hears it, but they are the truth?
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As far as TdDk are concerned their “bodyguard” is just “bonus fiancé”! And they keep telling him there is a place in their hearts, bed, and lives for Bk and Bk alone.
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And the three of them are working at TdDK merging Hisashi’s underworld connections into something legitimate by marrying it into Todoroki Inc and it’s a decade in the works but they see their future laid out for them.
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They all realize Dk is gonna be the brains of the outfit, Shoto is gonna be the pretty face to get the connections, and Bk is gonna be the brawn to protect them and maybe enforce what they want done. A perfect team.

(In life and in bed too!)
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