Little Wisps in Little Boys

Exorcising spirits is not Tsuna's forte. Running away from them and locking himself in his house is. But then he meets Reborn and learns that there's more to spirits than just malice (or rather, they get into some disagreement over killing or befriending said spirits). Then there's the Vongola and the Seven Reapers who want to use him... Hints of All/27, R27, X27