If any new players read this:

Get 6* Dendrobium and get 5* Cymbidium. level them up . Add any girl you get to fill team.
This is your daily sweeper team that will beat 99% of what is there.

Farm the reprint events and get all the girls with 1.2 Skill activation.
Get Kerria, level her, and put those girls on the team.
This will beat anything.

Good Luck.

Dendrobium is amazing for the whale missions since all the enemies on the ultimate stages hit like a truck. Dont just use her for Hit stages, use her on your first squad for every attribute mission.