Retsuko originally hoped to find Mr. Right and leave her job for the comforts of marriage,but Mr. Right hasn't appeared yet. These days, she spends her time toiling away, while fighting to keep in check the pent-up frustration from the work her superiors give her and the idiocy of her colleagues.She channels her anger into singing heavy metal karaoke alone after work(where she becomes quite... something else.)She came across the kindred spirits of Washimi and Director Gori when she was trying yoga for her mental health. Now they serve as good friends to each other.