I wish I knew. What with all these limited time offers up, it's so hard to bring myself to dedicate money and/or time to a Nutaku game when I'm worried it could close at any moment.

Looks like the DMM version went up at the same time. Well, beats Nutaku taking up a game that just CLOSED on DMM like they sometimes do I guess.

This game has its own dedicated forum here at harem-battle by the way so you should probably post there for most topics related to this game.