In Too Deep (Corpse X Sykkuno FanFic)

This is a story of one-shot like writing that follows the romantic relationship of Corpse Husband and Sykkuno, who are very close, on board a space ship for a couple of months. However, there's an imposter on board to kill everyone on the ship seeking the place to crash into the earth below. Even making a few allies to go with the plan, making it iffy on who's to be ejected into space.