Board Thread:General Discussion/@comment-6166034-20170109105804/@comment-6166034-20170118230059

37.161.134.231 wrote: The fact that this 43rd floor is unique is that regulars can use shinsoo without limitations (I used to think the contrary but it appears to be false). It's not a floor where you can't use shinsuu, it is the opposite.

Hmmm, it's not so simple concidering what Yuri thought while shooting hers :

"It's hard to control shinsoo with it being unstable". So yeah no need of contract, however limitations seem to be there.