It spends its first stretch letting you believe it's a goofy fanservice show about cadets flunking sim runs at a remote space station, then the Ghouls show up and the floor drops out. Watcher's Nest stops being a training post and becomes a haunted place, an inflation hole drive portal where something on the other side keeps reaching through, and the tonal whiplash is the whole point. Misaki Kureha is the joke of the barracks until she's the only one who can see it coming, and the show makes her survival feel less like a power-up and more like a curse. The 2003 CG for the Seraphim mecha and the Ghoul designs is exactly as raw as you'd expect from that era, and somehow the wrongness of it makes the horror land harder. Thirteen episodes, no fat, ending on a note that basically demands you go find Misaki Chronicles. Genre tags list comedy and horror side by side and that's not a mistake, it's a warning.

Humanity's reach extends to the far corners of space in the 24th century, anchored by distant outposts. Watcher's Nest is one such station, a portal for intergalactic travel that has recently come under attack by a mysterious force known only as Ghoul. A group of young female cadets posted there are finishing their training to become elite pilots in the Seraphim Squadron when they are suddenly caught up in serious trouble. Divergence Eve mixes sci-fi and mecha action with horror, drama and comedy.