oops my bad didn't add comment...
Just to be clear I have completed everything in return to achieves up and including current "Return to Shadow in the Ice" except for "Parallel Analysis" and the "end Conjecture". So you are saying I need to finish IBS 5 to even start to complete peer review studying scarlet or return to research which I have already completed. Yet IBS ep 5 has not been released yet. I wonder how I finished them.