Originally Posted by Akuser

Far as i known, at dmm.com, when u purchased 5.000 dmm points (5.000 yen ~ 50$), you'll get a ticket that 100% chance to roll a 6*
So, maybe nutaku will do the same in future, repare your wallet!

Actually, that is a special limited thingie in the gacha corner. I imagine this thing they are implementing on nutaku is the very same deal. It appears now and then for limited times, the other time being a step-up gacha.

The 5k thingie is meant for those that REALLY REALLY want a girl of their choice, not us standard f2p players or casual payers that pay 1k nut gold a month at most.