• The article discusses the release of the "Kenichi: The Mightiest Disciple" OVA (Original Video Animation) series on Blu-ray. The OVA series, titled "Kenichi: The Mightiest Attack of Darkness," is a compilation of the complete OVA episodes, which were originally released between 2012 and 2014. The Blu-ray release is expected to include high-quality video and audio, as well as additional bonus content for fans of the series.

• The "Kenichi: The Mightiest Disciple" anime series is based on the manga of the same name, which was written and illustrated by Syun Matsuena. The series follows the story of Kenichi Shirahama, a high school student who becomes a martial arts disciple under the tutelage of Ryozanpaku, a group of powerful martial arts masters. The OVA series explores additional storylines and character development beyond the main anime series.

• The article mentions that the Blu-ray release of the "Kenichi: The Mightiest Attack of Darkness" OVA series is a highly anticipated event for fans of the franchise. The compilation of the complete OVA episodes on a single Blu-ray release is expected to provide a convenient and high-quality way for fans to enjoy the additional content and explore the world of "Kenichi: The Mightiest Disciple" in greater depth.