You can bring the cypher to various characters, I might suggest Jenny and Haily?
I found the answer, thanks a bunch.
Also a couple bugs I found while messing aroudn:
When I pulled up the event map for lina's C3 scene, Do it says it leads to C3 but it actually doesn't, while Nah will unlock C3 but doesn't show it on the map.
Also, another bug I noticed: Lisa will still ask for Haily's top when Haily isn't at the cabin.