>>712774721
I beat this fight because of two things:
1) A revive dust + executive buffet combo during the middle of Susie's monologue. Having three party members to gather tp and eat up damage is very useful in the last third of the fight
2) Tenna's gachapons. After a dozen failed attempts, I realized my loadout is shit so I've backtracked to the b-rank room and played it until I won all the prizes. Got an extra revivemint and the aforementioned executive buffet out of it. Even temporarily disabled, my CRT king managed to help me in the final fight.