The anime adapted from the manga remake version of the Korean webtoon "A Simple Thinking about Bloodtypes" involving the faceless and nameless characters of four different blood types to discuss about popular anthropomorphized blood types (the stereotypes about the blood types) in Japan and Korea. (Source: Anime News Network)

Genres

Cast

Jun Fukuyama

A (voice)

Yuichi Nakamura

B (voice)

Akira Ishida

O (voice)

Tetsuya Kakihara

AB (voice)