Talk:Kara no Kyoukai Collaboration Event/@comment-32.210.215.215-20180208221638/@comment-2600:1700:3D50:D630:17:7D92:4F37:84B5-20180209000047

I'm trying to remember from my memory of the event a few years ago on jp so if I'm wrong sorry. I believe it comes into play later one once you complete a certain number of missions or something and you unlock a level with it. It's a trial quest with Void Shiki.