Nutaku? seems like their luck is extremely good when using FG to pull. Nothing extraordinary in using NG for 10+1 pull though.
Funny thing is, I never got rainbow in Nutaku despite great pull rate while I have 2 rainbows in DMM from sheer luck. (Anemone doesn't counted since it's exchange your girl deal)
---Updated---
Just log in on GS, and damn... True to its musical nature of the game, the event theme song really fitting for Tanabata. Very soothing and still has a kick as battle theme.
Although I don't like poker that much.