I can tell you right now those rings aren't some mind control gadget from Terankos. Remember what Yuri said. Zynothioid metal (I need to correct the spelling here and in Forlorn Heart) is used for making magic objects, but is also immune to magic. So if anything, if he tried to mind control Yuri, it wouldn't work since the ring would be protecting her. And theoretically, had he kept the thing, the pendant would have protected MC if Amy tried to sing the song or if Zhiritha were to try seducing him. It would cancel out any attempt those 3 would make to control someone. I'll also say get used to hearing that name. Aside from this game and the Forlorn Heart trilogy, you will be hearing this name a lot if you do decide to dive into this series and actually play something that isn't just Night Nurse again... Seriously, despite how much I tell people "this is part of a series, please play the others to get the full story," I either have people ignore me or ask me silly questions like "is this part of a series?" Or probably one of my favorite comments recently where someone asked if STR was a linear story... even though I said in the download post that IT IS a linear story and we got rid of the multiple endings. Night Nurse Remastered, however, will be an exception to that rule, considering that is the version that will apply to Modern Crusaders should I not decide to pull the plug on this thing. Modern Crusaders will reference events that happen in NNR specifically, with the original being its own thing in the alternate "downfall" timeline that will tie into that mod in some form (not going to say how), but otherwise the most important mods that would tie into it would be Shattered Time: Rewind, Captive Heart: Amor Prohibido, Captive Heart: Original Me, Night Nurse Remastered, Proper Stranger, and the Forlorn Heart trilogy.