Anime and manga intended for the adult male demographic.
anime that is targeted at teenage boys and young adult males
manga that is meant for a more mature male audience. It is the male equivalent of Josei manga. Seinen titles are typically darker and more somber than their Shonen counterparts.
A category of manga (and anime) targeted at adult males. Can include pornographic titles but does not automatically have such content. Equivalent to Adult or Mature Audiences titles in the States.
Refers to the area of exposed thigh when a girl is wearing a short skirt and thigh-high socks. The ideal skirt:thigh:sock-above-knee ratio is often reported to be 4:1:2.5. Zettai ryōiki are often referred to by letter grades, where gradeA is the ideal.