"Birthday?" | Accidentally Replaced MC AU |

aight, basically, in this au MC and R/N both started at the same time, all events that took place in the original timeline did happen, however, R/N spent more time with everyone and did her best to keep MC away from the siblings, causing the brother to have stronger bonds with R/N.

Unintentionally, the brother give R/N more attention and hangout with her more, leaving MC to stay in their room, isolating, none of the brother notice this except for Mammon, still fixated on being MC's first.

Today was MC's birthday and Mammon was the only one who remembered, he tried telling his brothers but they were all busy hanging out with R/N and kept telling him to leave them alone so Mammon decided they didn't deserve to be anywhere near MC because of how they treated them and went to cheer them up the best he could.

Lucifer soon discovers how much they've been neglecting MC, what will happen next? you'll never know cause I suck at making series and stuff :)

The reason I believe Mammon of all the brothers would stick by MC's side is because of how he treats the MC canonically, despite his tsundere tendencies, he makes it obvious he cares about MC, he's always upset when he can't be with them or when they're hurt or wounded so yea :)
I think he has one of the strongest bonds with the MC in my opinion so yeaaaaa, I just can't imagine him going against MC unless MC's life was at stake.
And plus, since Mammon knows what it feels like to be neglected or have someone be given more attention and affection than himself, he'd want MC to stay by his side and to never leave their side, especially since he loves them so much :)
Not saying the other brothers don't love MC at all in this au, they just seem to favor R/N more and do this without acknowledgment

Anywayyy have a lovely day💕💕💕

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