I'm still confused as to why we don't know what Adrian talks with Rain about. The story always cuts away from those scenes. There's got to be a reason other than cheap suspense...
I see it as a tease. And really this is just the way the story has been told - or not told - from the start.
I mean, possibly that's Rain's hand and arm in 20. The story could probably have got us well up to speed there and then if we'd seen the rest of
that conversation. But Rain wasn't even introduced to us as a character until 101. Then, of course, there was the one-to-one in 121...
This is like a murder mystery story, only we don't even know who - if anyone - was murdered.