OVA: (
Type) OVA = Original Video Animation. These are the direct-to-video anime titles done in Japan. Often, OVAs can start a franchise (
Tenchi Muyou! Ryououki), start a TV series (
Mahou Tsukai Tai!), be a sequel to a TV series (
Love Hina Again), or be a stand-alone title (
Aa! Megami-sama! OVA). Sometimes, the OAVs are named the same as the TV series and thus will sometimes have the term OVA listed after the title's name to separate it.
Elementary School: (
Story/Location) Self-explanatory. Elementary school (class 1 to 6 in Japan) should play a major role in the title. Related categories: "
Middle School", "
High School", "
College".
Fan Service: (
Objectionable Content) This is a term coined to identify things like jiggling breasts, cleavage shots, panty shots, bra shots, closeup shots of women's breast, legs, butt, etc., and mild nudity all for the purposes of "servicing" the audience. The term has a second meaning covering things like massive action sequences, explosions, fights, etc., but it mostly refers to the first meaning.