I think that putting away the katana is in your best interest right now!! Are you looking for Ichor? Well, let me tell you - I have the Ichor! For not long ago, I stole it from the Tower of Fear... Well? Your Beloved is dying and you are threatening the only chance to save her... how foolish!!!!
Note: Shin is not one of those fluffy heroes who trust mere words, and even less likely to be someone who would lower their sword at a single limp threat from a "skeleton in a robe".