Warrior in Armor Iris / Soukou Kijo Iris

Alternate world, Soviet troops are traversing the expanses of space. New worlds and alien creatures have been discovered. Among them are outright scumbags and criminals. To capture them, a federal space police department was created. Our main heroine, Lieutenant Iris, serves in one of such units. While carrying out a particularly dangerous mission to capture criminals, she falls into a trap. She is kidnapped by a group of tentacle-like monsters

.