Oh... if it's just for fun it should be hard for me then.
I'll see what I can do.
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Oh... last post is still my post... great... **editing**
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My main team in Aqua-boss. Final setup.
Well I do 2 roll for fun with new priority, and got Soap-chan.
ah... yep, I did get Soap-chan a few hours ago.
So I decide to use my rainbow coin to trade for Yamabuki/Kerria.
This group work well, they can torn those Saboten sister HP down about 1/3.
After that I use my usual helper group to follow, and finish them with a mini solar drive group that have Seluria/Blushing Bride and Hatsuyuki/Ghost Weed.
Overall result, Saboten sister K.O. or almost K.O. by 2nd group.
Worst case, 1 of them survive with little HP to K.O. by my 4th group.
Solar drive use : 1 time with 189% boost.