I might do a mairimashita iruma kun Mafia au fanfic with Yuki. Meaning she'll be 18 at the start, and then she will be 27 after the 9 year time skip. The idea I have for Yuki right now is that she focusing on targeting Miyuki, but ends up getting stuck with working with Iruma, Opera and Kalego. At first Yuki and Kalego dislike each other, but Yuki doesn't acutally dislike Kalego. It's quite the opposite. Yuki and Iruma still see each other as family, and Yuki is Sullivan's granddaughter before the start of the manga. But she pretty close off to the other Mafia members until Iruma and Opera join. Yuki only talk to Sullivan before this, and Yuki was already doing her own research on Miyuki before this.
Tell me if you have any ideas for the Mafia au.