Honestly im not a master in this game (dnt care as long i have fun ) but so far i made this event with this team

War Aigis1.png

pretty well. It could be better but i dnt need a 100% completion. My progress so far:

War Aigis2.png

Note: I didnt used Nagi at moment cuz Hina has atm better stats as Nagi due 100% Affection. Also ALL of my chars is Level 30 or below 30 (except Nagi and 1 or 2 another chars).