The OVA ends ambiguously, with a clock shattering. Unlike the previous entries, Pico x CoCo x Chico has no clear villain or moral. This ambiguity is why fans obsess over the English sub translation—one translator’s word choice changes the entire ending.
In submersible engineering, OVA stands for "Outer Vessel Assembly." The OVA refers to the outer hull or shell of a submersible vehicle, which provides structural integrity and protection from the surrounding water pressure. The OVA is a critical component of a submersible, as it must withstand extreme conditions, such as deep-sea pressure and corrosion. pico coco chico ova sub eng
(Because “sub eng” often refers to English subtitles — “ova” could mean Original Video Animation.) The OVA ends ambiguously, with a clock shattering