The lost Sky

Sawada Tsunayoshi, the Vongola Decimo.... is lost
After the last war the vongola famiglia died, everyone reincarnated into a parallel world where demons exist. The famiglia remembers their past. They want to restart their life, but something is missing, more precisely someone.

Rin and Yukio are twins and brothers of Tsuna. Tsuna doesn't remember his past, he forgotted everything. He lived with his new family, when the disaster came and their life could not be the same.
Will he remember his past, and will his family find him?

The plot is mine. I don't own Katekyo Hitman Reborn or Blue Exorcist. The same true for the pictures.
If you don't like boy×boy then you should leave. I want it to be All27, and R27. It mainly be fluffy.