A side-story of Darker than Black, also called Episode 26, that takes place during the events of Kuro no Keiyakusha. The Syndicate has another job for Hei and his team. This assignment involves the sought after possessions of a dead contractor, which are believed to have been buried beneath a cherry tree. Meanwhile, Misaki Kirihara and her team plan a trip to the Cherry Blossom festival. [Written by MAL Rewrite]

One Punch Man 2nd Season's commemorative recap special.

Soon after falling into another world, Kurumi Tokisaki takes interest in a particular white cat. Much to Kurumi's disappointment, the two part ways. Kurumi later meets Hibiki Higoromo, a white haired quasi-spirit. Hibiki explains that they are at the center of a killing game between quasi-spirits. Within the Neighboring World, the spirits compete for a single wish to be granted to the lone survivor of the death-match. Understanding the rules of the game, Kurumi and Hibiki reach a compromise—a temporary alliance. [Written by MAL Rewrite]

Episode 13 of Acchi Kocchi that was included in Vol.6.