All27: Finding a Husband for My Little Brother

After transmigrating into the world of Katekyo Hitman Reborn for the third time as a girl, this author even ended up as Tsuna's older brother. Wait, why did I change sex!? Oh well, no need to worry about the details. For a main-character fanatic like me, this is perfect! Long live Tsuna! Of course, I won't keep Tsuna all to myself. Naturally, I'll help him find a pairing! (I'm partial to dark-filled sandwiches, but for everyone's sake, I'll set aside my personal preferences and write an all-27 pairing! Naturally, there'll still be dark-filled sandwiches and the like.)