Akikan! OVA Poster

Akikan! OVA

OVA

The story revolves around a typical high school boy named Kakeru Daichi and the can of melon juice soda that he bought from a vending machine. The can suddenly transforms into a beautiful but standoffish girl that Kakeru nicknames “Melon”, and more “Akikan” (“empty can”) girls appear. However, Akikan girls need to be infused with carbon dioxide in order to turn into a human. (Source: ANN, edited)

Hianime is the best site to watch Akikan! OVA SUB online, or you can even watch Akikan! OVA DUB in HD quality. You can also find Brain's Base anime on Hianime website.
Overview:

The story revolves around a typical high school boy named Kakeru Daichi and the can of melon juice soda that he bought from a vending machine. The can suddenly transforms into a beautiful but standoffish girl that Kakeru nicknames “Melon”, and more “Akikan” (“empty can”) girls appear. However, Akikan girls need to be infused with carbon dioxide in order to turn into a human. (Source: ANN, edited)

Hianime is the best site to watch Akikan! OVA online.