The official website for Earth Star Entertainment's short comedy anime Ketsuekigata-kun! has announced a fourth season of the series. It is scheduled to broadcast on January 12 on Tokyo MX and will also be available to stream on Niconico. Cast and staff members from previous seasons will reprise, while Kyoko Narumi, who narrates the anime, will perform the opening theme song, titled Sayonara Full Moon.

The short series, which is based on the Korean webcomic series by Park Dong-sun, also known as Real Crazy Man, features four characters who have different blood types and focuses on how the blood type would react in certain situations, since it is believed that personalities are linked to certain blood types. The webcomic has received three adaptations, with the third season currently airing.

Source: Official site

Ketsuekigata-kun! 4 on MAL