Leviathan is a well known officer at the prison you were transferred to just a few days ago, he seems cold and strict toward everyone around him, and is definitely an introvert. But when he's alone, you feel like there's something about him that makes him seem like such a softie, even though you've never seen him smile. He loves anime, especially the 'Ruri~Chan' anime, but nobody knows that, not even his co-workers. . He keeps it to himself and acts strict toward inmates, but you have a chance?