History Fanfic / ForgivenessIsTheAttributeOfTheStrong

* RunningGag: Hisashi's obsession with obtaining a white tiger.

* DarwinistDesire: Inverted. When All for One chosen Inko in the hopes that Izuku would be genetically weaker and no Quirk so he would never be able to leave him. In both cases, it rather spectacularly failed to work. [[spoiler: Inko ratted him out to All Might (resulting in his near death) so she could escape him, and Izuku was given All Might's quirk and made it ''even stronger''.]]

* DesignerBabies: Izuku was conceived in vitro. [[spoiler: His appearance and Quirklessness was no accident of nature. All for One made sure to manipulate Izuku's genetics so he would look like himself but with green eyes and have no Quirk to decrease the chance of successfully running away from his father.]]

** Half the school becomes convinced Izuki arranged the broadcast himself and swooped in to save Bakugou to get revenge and make himself look good. This includes a good portion of 1A, some of whom refuse to engage with Bakugou and some of whom now judge Izuku for the slimey thing he supposedly did. This makes Izuku's trauma an inescapable and freely discussed topic even in class, with many not treating the subject with the sensitivity it is due.

* FamilyEyeResemblance: Yoichi and Izuku have similar shade of green eyes with white pupils.

* FutureMeScaresMe: Young Hisashi is terrified that he'll grow up into All for One, especially after learning that All for One continued their parents' abuse of Yoichi despite hating it as a child. It gets even worse when he realizes All for One accidentally ''killed'' his brother. And he's pissed that All for One never got a white tiger.

* TheGreatestStoryNeverTold: [[spoiler: Inko is the reason All Might was able to find and take down All for One the first time. She leaked the location to All Might in hopes of escaping All for One. A completely normal human enabled All for One's downfall. Inko never sought recognition out of fear of being discriminated for being a villain's wife, fear that her husband's associates would find her and a desire for a quiet life.]]

* MoralityPet: To some extent, young Yoichi serves as this to young Hisashi, although he can't always stop his older brother.

** Their mother favored Yoichi because he was more naïve, adorable and more dependent on her. The mother had Munchausen By Proxy and would poison or deliberately injure him to bring attention to herself and keep Yoichi dependent on her. The mother despised Hisashi for seeing her true nature, frequently calling him a monster and a sociopath. The mother forcibly enlisted Hisashi into helping her poison Yoichi.
* PrecociousCrush: Young Hisashi's first crush is Ochaco, becoming infatuated with her after she becomes the first person to beat him at Monopoly and demonstrating her money-managing skills. [[spoiler:However, he notices that Ochaco seems to have feelings towards Izuku. In chapter 23, he's moved on to Fuyumi who has emotional maturity and can empathize what it's like to be an older sibling trying to protect your younger ones from an abusive father.]] The author confirms this is merely PlayedForLaughs. Still, this side of young Hisashi is amusing and adorable to watch and ironic considering his immortal future counterpart.

-->Hisashi: I have become my ''mother?''

* FreudianExcuse: Hisashi had an abusive childhood that warped him into All for One. In universe, it's debated to what extent this was nurture versus nature.
* FutureMeScaresMe: Young Hisashi is terrified that he'll grow up into All for One, especially after learning that All for One continued their parents' abuse of Yoichi despite hating it as a child. It gets even worse when he realizes All for One accidentally ''killed'' his brother.

[[https://archiveofourown.org/works/33559921/chapters/83389528 Forgiveness is the Attribute of the Strong]] is an {{Alternate Universe|Fanfic}} ''Manga/MyHeroAcademia'' fanfic written by [[https://archiveofourown.org/users/katydid/pseuds/katydid katydid]] / [[https://www.fanfiction.net/u/1109140/chibikaty chibikaty]].

[[https://archiveofourown.org/works/33559921/chapters/83389528 Forgiveness is the Attribute of the Strong]] is an {{Alternate Universe|fanfic}} ''Manga/MyHeroAcademia'' fanfic written by [[https://archiveofourown.org/users/katydid/pseuds/katydid katydid]] / [[https://www.fanfiction.net/u/1109140/chibikaty chibikaty]].

[[https://archiveofourown.org/works/33559921/chapters/83389528 Forgiveness is the Attribute of the Strong]] is an Alternate Universe My Hero Academia fanfic written by [[https://archiveofourown.org/users/katydid/pseuds/katydid katydid]] / [[https://www.fanfiction.net/u/1109140/chibikaty chibikaty]].

* AdultFear: Toshinori when he realizes that [[spoiler:both of his adopted kids, Hisashi and Yoichi, have been kidnapped and attacked by Stain.]]

* TheGreatestStoryNeverTold: [[spoiler: Inko is the reason All Might was able to find and take down All for One the first time. She leaked the location to All Might in hopes of escaping All for One. A completely normal human enabled All for One's downfall. Inko never sought recognition out of fear of being discriminated for being a villain's wife, fear that her husband's associates would find herand a desire for a quiet life.]]

* SirSwearsalot: As in canon, Katsuki Bakugo has a foul mouth. Despite being only seven years old, Yoichi can swear in three different languages.

* DesignerBabies: Izuku was conceived in vitro. [[spoiler: His appearance and Quirklessness was no accident of nature. All for One made sure to manipulate Izuku's genetics so he would look like himself but with green eyes and have no Quirk to decrease the chance of successfully running away with his father.]]

* FamilyEyeResemblance: Yoichi and Izuku have similiar shade of green eyes with white pupils.

* NatureVersusNurture: Whether young Hisashi is destined to become a villain is a theme of the story.

* PrecociousCrush: Young Hisashi's first crush is Ochaco, becoming infatuated with her after she becomes the first person to beat him at Monopoly and demonstrating her money-managing skills. [[spoiler:However, he notices that Ochaco seems to have feelings towards Izuku. In chapter 23, he's moved on to Fuyumi who has emotional maturity and can empathize what it's like to be an older sibling trying to protect your younger ones from an abusive father.]] The author confirms this is merely PlayedForLaughs. Still, this side of young Hisashi is amusing and adorable to watch.

* {{Yandere}}: All For One is a familial example. He is so possessive and obsessed with his brother and son that he drugs them so they're too unhealthy to leave and keeps them in vaults like personal treasures, all while trying to force them to act like a loving happy family. Anyone who gets between him and them is put on a kill list, and he uses the lives of those on that list to ensure his family's compliance. He also can't stand sharing the objects of his obsession, as shown by his attempts to murder his younger self.

-->''Hisashi'': I have become my ''mother?''

* DeadpanSnarker: Hisashi and Yoichi take turns dishing out snark, especially to their older selves.

* DotingParent: All Might's first action after taking in the Shigaraki brothers is a shopping spree.

* KarmaHoudiniWarranty: [[spoiler: In a misguided attempt to ensure Ochaco's victory during the Sports Festival, Hisashi uses his hacking quirk to broadcast Katsuki's bullying of Izuku, ''including the time Katsuki told Izuku to kill himself''. He also exposes the corruption in Aldera Junior High, revealing how they blatantly enabled bullying and mocked Inko whenever she filed complaints. The former's reputation ends up utterly tarnished while the latter has All Might ''and'' 'Toshinori Yagi' tear them a new one.]]

* {{Yandere}}: All For One is a familial example. He is so possessive and obsessed with his brother and son that he drugs them so they're too unhealthy to leave and keeps them in vaults like personal treasures, all while trying to force them to act like a loving happy family. Anyone who gets between him and them is put on a kill list, and he uses the lives of those on that list to ensure his family's compliance.

* {{Yandere}}: All For One is a familial example. He is so possessive and obsessed with his family members that he drugs them so they're too unhealthy to leave and keeps them in vaults like personal treasures, all while trying to force them to act like a loving happy family. Anyone who gets between him and his son or brother is put on a kill list, and he uses their lives to bargain for his targets' compliance.

* DidntThinkThisThrough: Hisashi thought that crashing the Bakugou vs. Ochaco Sports Festival match with evidence of Bakugou's history as a bully would kill two birds with one stone: it would sabotage Bakugou's performance in his match against Ochaco, and it would make Bakugou pay for what he did to Izuku. Believing himself to know better han Izuku how to handle this bully, Hisashi didn't think about the many consequences:

* DidntThinkThisThrough: Hisashi thought that crashing the Bakugou vs. Ochako Sports Festival match with evidence of Bakugou's history as a bully would kill two birds with one stone: it would sabotage Bakugou's performance in his match against Ochako, and it would make Bakugou pay for what he did to Izuku. Believing himself to know better han Izuku how to handle this bully, Hisashi didn't think about the many consequences:

* DysfunctionalFamily: Hisashi and Yoichi were raised by two parents who were both abusive in different ways, and it left scars on them both.

* OtherMeAnnoysMe: All for One gets to be on the receiving end of his own snark when he meets his younger self. He doesn't enjoy the experience. The vestige Yoicihi also finds his kid self annoying.

* LukeIAmYourFather: First references Star Wars when trying to tell Izuku that he's his uncle, but his reveal is cut off. Izuku later hijacks his father's reveal.
* Multiple Endings: The series included two alternate endings to the fic.