This is a corporate mascot commercial disguised as a sci-fi action series, and it somehow commits to the bit harder than any real show would dare. The ingredients in Santen eye drops become sentient soldiers defending a literal planet called EYE, and the premise never winks at the camera or apologizes for existing. You either clock that this is pure corporate art and get swept up in how sincerely deranged it is, or you watch five minutes and understand why nobody remembers this. The animation budget went to fight choreography over character development, which means you're watching ingredient compounds throw hands in space while the narrative logic crumbles. It's a relic of early-2010s ONA absurdism, built for a specific audience that found the concept funny enough to sustain five episodes. Either you're the person who watches this and immediately tells someone else about it, or you're not.

Eyedrops is a five-episode action ONA from 2016, made as an extended commercial for Santen's MediGuard EX eye drops. The chemical ingredients in the product take the form of CG girls, called the Eyedrops, and they fight to defend a planet named EYE. The short action episodes are built around these personified components acting as the planet's protectors.