A Life Not Lived

by chibikaty

A series of snippets and AUs containing fluffy Dad for One content and murderous brotherly love, loosely connected to my fic Custody Battle. Including: Four Ways the First User Could Have Died; All for One bonds with his son while Izuku tries to stop him from killing people; and How All for One discovered he couldn't steal his little brother's quirk.

1. Chapter 1

Chapter One: Index

Here is an index of the oneshots to be published in A Life Not Lived. These include various Dad for One AUs and snippets from the Custody Battle Universe, but reading Custody Battle is not strictly necessary to understand any of them. This story updates every Tuesday evening.

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1. Index

2. All for One discovers for the first time that he can't steal his little brother's quirk.

3. The time-traveling First User of One for All finds out his deadbeat brother left behind a child and attempts to parent. (Prologue to Custody Battle.)

4. Inko uncovers her husband's villainous activities, including his brother locked in the basement. (An Inko lives Custody Battle AU). Important note: this oneshot has been continued as a multi-chapter story called A Road Not Traveled.

5. Four different ways the First User of One for All could have died

6. Custody Battle epilogue: Izuku throws a surprise birthday party for his father. All for One doesn't handle surprises well.

7. All for One travels back in time into his younger body, determined to prevent his younger brother's death. Will he make the same mistakes as last time or at least make new ones?

8. Hisashi/All for One visits Izuku's school and butts heads with a snooty parent. Will Izuku be able to stop his dad from slaughtering his way to the top of the PTA?

9. Grandma Nana teaches Izuku how to fly.

10. Set in the past. While dying from his illness, the First User decides to try one last time to reconcile with his older brother.

11. Bad ending to Custody Battle where Hisashi/All for One gets trigger-happy with Eri's rewinding quirk and vaults everyone.

12. Hisashi's turn to get rewound!

13. When Izuku walks into class 1-A and sees his father standing behind the teacher's podium, he believes he's having a nightmare. Unfortunately for him, All for One has been recruited by Nezu to give students the accurate version of history. A Custody Battle Epilogue.

14. While trying to deage his younger brother, All for One accidentally got hit with the quirk himself. Now who's the older brother?

15. Over the course of Japanese history, only three press conferences have no surviving records. Prime Minister Shigaraki erased all footage. In his secret identity as All for One, he silenced the surviving witnesses. Legend has it that anyone who speaks of the three forbidden press conferences will die at the hands of Japan's greatest supervillain. The final Custody Battle Epilogue.