/jp/ - Otaku Culture

Hey /jp/ going insane from one phrase in this VN im trying to translate that drastically effects the story "ga shin jau" but really just "shin jau". I know it something about dying but not sure of the tense. Going to die, was/is dead or just plain dye.

I'v scowered the internet and my dictionaries for hours at this point to no avail. Thanks in advance.

ps: I'm pretty certain it means something like "but you're dead"