Currently at 25F with chen lv193, Defeated hibachi twins V1 and all bosses V2 except maribel, I tried celestial demon and got wiped, decided to try flame tyrant to see how badly i would do and i won in the most stupid possible way :V, started battle with my bossing team Meiling,remilia,Reimu,kaguya, All of them except meiling got wiped by the first hellfire, switched renko in and spamed galaxy stop, kept the tyrant par locked the whole battle while flandre,chen,aya,orin,komachi,marisa,utsuho chipped all its Hp slowly, and i got its drop to boot :3, Also should i keep grinding at 20F or i should move somewhere else?
EDIT
I tried to equip the black ocarina to meiling and she would have 557 Fire resist, wasnt the cap 500?