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  1. Public Bookmark 14

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    Summary

    The Agency and the Port Mafia have made a deal which Mori intends to collect on, but of course not before letting the dread torment them for a month. A moth which Dazai spends spiraling as the majority of the ADA turns a cold shoulder to him after learning of his crimes and the imminent time he'll break his promise to Odasaku looms over him. And once he's finally settled in with his new (old?) family in the mafia who shall appear but a copycat organization bearing the dreadful name of Mimic, as if taunting him from beyond the grave about the broken promise. But is this merely a coincidence or is someone trying to lure him into a trap? (Genuine mystery since I haven't finished planing it yet so idk)

    OR: Dazai rejoins the mafia & a Mimic copycat organization appears (In act 4 (like at ch 30 or something) so a good bit in)

     

    Beware TWs in start of chapters!

    OBS: WORK IN PROGRESS!
    This fic may or may not be abandoned in the future & will have weekly updates past Ch 19 (until then daily)
    YOU'VE BEEN WARNED!

    Language:
    English
    Words:
    90,749
    Chapters:
    28/82
    Comments:
    234
    Kudos:
    83
    Bookmarks:
    14
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    1,444

    25 Oct 2026

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  2. Public Bookmark 9

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    When ADA!Dazai unexpectedly arrived in the BEAST universe, the first thing he saw was Chuuya: bound by chains and entirely consumed by Corruption.

    "What the hell...?" Dazai muttered.

    He knew this wasn't normal. If it were, he would have been notified immediately—unless he had lost his memory and couldn't recall any of it. But that was impossible. He approached Chuuya, who was staring down, completely oblivious to another presence in the room—or perhaps he was so accustomed to it that he simply didn't care.

    Language:
    English
    Words:
    1,317
    Chapters:
    1/6
    Comments:
    2
    Kudos:
    35
    Bookmarks:
    9
    Hits:
    244

    22 Oct 2026

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  3. Public Bookmark 1

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    At sixteen, Port Mafia prodigy Osamu Dazai calculated a flawless plan to isolate Chuuya Nakahara from his teenage street gang, the Sheep, forcing him to join the syndicate. But Dazai vastly underestimated the chaotic nature of human terror. A single miscalculation turns a strategic raid into a fatal massacre, leaving Chuuya digging through the burning, bloody ash of his childhood family.
    Shattered by Dazai’s cold, heartless logic, Chuuya violently breaks their bond and turns his back on the underworld forever.

    Four years later, the coin has flipped. Chuuya is now a top investigator for the Armed Detective Agency, draping a tan coat over his shoulders and fighting to protect the city. But when a brutal new string of mafia executions leaves a chillingly familiar handwriting at the crime scenes, Chuuya is forced to face the ghost of his past.
    Dazai didn't leave the dark. Instead, he became the Port Mafia's youngest, most ruthless Executive; The "Demon Prodigy."

    Or
    What if Dazai stayed in the Port Mafia, and Chuuya left the Port Mafia to join the Armed Detective Agency?

    Language:
    English
    Words:
    22,423
    Chapters:
    4/?
    Comments:
    1
    Kudos:
    13
    Bookmarks:
    1
    Hits:
    140

    22 Oct 2026

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  4. Public Bookmark 4

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    This was a supposedly a regular day, one of many days when Dazai goes to honor his dead friend at the graveyard. But surprisingly, he was not alone this time. The Port Mafia's Boss happened to be at the same place, at the same time, and soon… Things would turn real hectic.

    Language:
    English
    Words:
    2,511
    Chapters:
    1/1
    Comments:
    5
    Kudos:
    7
    Bookmarks:
    4
    Hits:
    74

    19 Oct 2026

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  5. Public Bookmark 44

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    Chuuya clutched Dazai's suicide note in his hands, and held onto it long after Dazai was gone. Ever since that day, Chuuya has been writing letters to the ghost that still lingers by his side.

    Language:
    English
    Words:
    1,886
    Chapters:
    1/1
    Comments:
    27
    Kudos:
    323
    Bookmarks:
    44
    Hits:
    2,958

    19 Oct 2026

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