Slashley, I spent all 9000 MJ I got on this recent boob gacha, in the hopes of getting Nike, Leviathan or Dark Gaia. Also Dian Cecht wouldn't be bad as my first Thunder SSR.

Got the Wind Gaia instead, which was one of the Rated-Up girls.

I also played one Daily Selection some time ago who had both Aphrodite and El as Rate-Up girls. Spent 9000 MJ as well, got El instead of the one who I really wanted. So in my experience the Rate Up seems to up the chances to get the girl I want, but in the end of the day it is jst gambling, don't keep hopes too high.

At least Wind is looking solid now with Gaia, Set, Azazel an El.