Original net animation, Animanga Wiki

An original net animation or ONA is an anime that is directly released onto the Internet. ONAs may also have been aired on television if they were first directly released on the Internet. In some cases, they are released near simultaneously to the Internet and distributed by other means (TV broadcast or theatrical release) The name mirrors original video animation (OVA), a term that has been used in the anime industry for straight-to-video animation since the early 1980s. The Internet is a newer

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