Changing schools

Tsuna and his guardians are transferred to Kunugigaoka middle school by reborn and are put in class E. Will Tsuna and his guardians be able to kill Koro sensei with the other students while hiding that they are in the mafia?
[SLOW UPDATE]
[DISCLAIMER: I DO NOT OWN ASSASSINATION CLASSROOM OR KATEKYO HITMAN REBORN ALL RIGHTS GO TO THE THEIR ORIGINAL OWNERS]