A dispassionate, withdrawn assassin, Golden Darkness is hired by one of Lala's arranged suitors, Lacospo to kill Rito, until she breaks the contract, noting the true nature behind her target. Golden Darkness is currently staying on Earth, roaming around the city streets and Sainan High, with a motivation to continue her duty to assassinate Rito, although she has yet to accomplish this (hinting she only said this as an excuse to stay on Earth, which is then confirmed). Commonly referred as "Yami-chan", she spends her time reading books and magazines, while eating taiyaki (it was the only thing she ate on Earth since it was the first food offered by Rito, prior to spending a night at the Yuuki residence for a sukiyaki dinner). By her planet's calculations, she is 24 thousand years-old (as shown in season 1 where the job applicant stops Konjiki no Yami just before she was about to say 'thousand'), despite having the appearance of an 11-year-old (albeit a rather mature one), although this is only mentioned in the anime and has a weakness towards anything slimy. Like Lala, Golden Darkness' physical abilities are exponentially stronger than a human's. She carries a unique ability to turn her body parts into various objects through use of nano machines circulating her body, ranging from swords to dragon heads. Unfortunately, excessive use becomes a hazard to her health. She states she hates "ecchi" people, and does not hesitate to assault a person who looks at her in an obscene way, even if it's her own fault like when she was using her abilities to increase her bust she attacks Rito when he saw her, mostly out of embarrassment or for many occasions standing at the top of something such as stairs where her panties could be seen by accident. She has also stated, that she doesn't understand if she can feel love and all its wonders, though she slowly becomes closer to Rito once seeing that he is a good person.

Endou Kenji grew up in late-1960s/early-1970s Japan, at a time when American phenomena, notably the space race and the era of Woodstock, were resounding around the world. An avid reader of manga who often saw apocalyptic scenarios playing out, he always responded with the cry of "I would fight!" During this time, he and his friends made up a scenario for world conquest in order to play heroes. Flash forward to 1997, a time where Kenji has taken charge of his families liquor shop and turned it into a convenience store. He is now raising the daughter of his sister, Kiriko (who disappeared immediately after leaving her daughter to Kenji), and living a fairly ordinary life. However, after events from the prophecy he made up earlier begin to come true, he learns of an evil organization, led by a masked man called "Friend", which is using his plans to conquer the world. As the organization's hold on the government strengthens, he becomes a wanted man and lives on the streets, continuing to (covertly) oppose Friend, partially through terrorism and partially through a protest song he wrote (named "Bob Lennon"). No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .