Zombie-Loan - Season 1 Episode 4 Butterfly Flutter
Overview: Chika's old acquaintance, Reiichirou Shiba, helps Chika and Michiru out of a jam. Shiba then tags along with the two to the Z-Loan office, where Shito instantly points his gun at him. Chika, who also seems to dislike Shiba, convinces everyone that he is of no harm. Meanwhile, a new addition to the office is introduced, in order to help them with their upcoming job.