(Blue Archive) The Fury of Set Season 1 - Floor 100 (Hanako + OShigure Double Healer)

This comp is dangerously low in terms of DPS. You need to make sure that your buffs are ticking 99% of the time and that Sakurako's EX is active 99% of the time (without spamming it, that causes a loss in terms of DPS).
Here are my Sakurako timing notes (sorry, had to add spaces so RUclips doesn't turn it into a timestamp):
3: 48 basic
3: 07 basic
2: 31 reload
1: 58
1: 23
0: 50
0: 21 basic
The rest of it was just practice and memorization so unfortunately I can't help there.
Students:
SHoshi UE40 5MMM 887
NYKayoko UE50 5MMM 998
Sakurako UE50 5MMM (Borrow)
SIzuna UE40 5MMM 998
DAko 3* 5M94 886
Kokona UE30 5MMM 778
Kotama UE30 511M 552
SShiroko UE30 547M 887
Hanako UE40 547M 547
OShigure UE40 5MMM 888