How to do :
Get some specifique Emergency Live and Done this one with a pur type (i.e : 12 Vocal)
Quest : (don't know the order)
1 : Finish 12 quest of the event
2 : Find yourself and beat Emergency Live Dance (friend can help you for beat it)
3 : Find yourself and beat Emergency Live ACT (friend can help you for beat it)
4 : Beat any Emergency Live
5 : Use 12 VOCAL type in Emergency Live Vocal (help friend Emergency Vocal can count)
6 : Use 12 ACT type in Emergency Live ACT (help friend Emergency ACT can count)
7 : Use 12 Dance type in Emergency Live Dance (help friend Emergency Dance can count)