Yakuza: Of the End screens introduce cast and ... this thing
The accompanying news post rounds up all the voice talent behind the cast, and explains how each of the main characters ended up in the middle of a ruined Kamurocho. Kazuma Kiryu returns to rescue his adopted daughter Haruka; Yakuza 4's Shun Akiyama is in town to collect on a debt when the zombie thing happens; Yakuza 2 final boss Ryuji Goda has been wandering aimlessly, selling takoyaki on the street (to pay for maintenance of his awesome cybernetic arm, possibly); and Goro Majima is chasing Goda when he finds a city full of zombies. Apparently, the crazed Majima is enjoying himself.