The moment that thing starts moving through the Saldes, the ship stops being a vessel and becomes a tomb with walls closing in. Claustrophobia does the heavy lifting here, not jump scares, not gore, just the suffocating reality that thirteen people in zero gravity have nowhere to run and nowhere to hide. Single OVA, no filler, no mercy.
Twenty-two years into a deep space expedition, the crew of the Saldes faces something they never trained for. What started as a routine journey to catalog a distant planet turns into a nightmare when an unknown presence infiltrates the ship. Something hunts through the corridors. Something learns. Something kills. The thirteen-person crew scrambles to understand what brought aboard, but communication breaks down and paranoia spreads faster than the threat itself. Scientists and veteran pilots alike realize the ship's systems are being manipulated from within. They're trapped in a metal tomb hurtling toward a world that now seems less like a destination and more like a graveyard. Isolation amplifies every fear. Trust becomes a liability. The crew must decide whether to fight an invisible enemy, trust each other, or accept that some expeditions don't end in discovery. As supplies dwindle and the truth remains elusive, survival means confronting not just what hunts them, but what they're willing to become to stay alive.