Konjiki no Yami, mostly referred to by other characters as Yami, is a major character in To Love-Ru and To Love-Ru Darkness. She is a lonely assassin who is initially hired by Lacospo, one of Lala's arranged suitors, to kill Yuuki Rito. But when Lacospo effectively annuls the job, she decides to take her time and, under the pretense of still needing to complete her mission to kill Rito, stays on Earth. As she spends more time on Earth, she builds a very strong relationship with Rito's mature younger sister, Yuuki Mikan and to Rito himself, whom she also develops feelings for. In To Love-Ru Darkness, Yami becomes central to the main plot. This is because there is a group that wants her to join them as the heartless assassin she once was. Her "sister", Kurosaki Mea (a transformation weapon of the same program that created Yami) and a mysterious figure known as Nemesis, arrive to Earth to take her away and revive the old heartless/murdering self that she once was. Yami has long blonde hair, dark red irises, and a child-like figure. Her 3-sizes are B75-W52-H77. Although it should be noted that she can change her appearance to look older with her transformation ability, her choice to remain in her child-like form is most likely due to the fact that it is comfortable when in combat. This can be seen in both the manga and OVA where she wonders on whether or not having larger breasts and a more mature body would affect her balance. Characters have made several notes about the shape of her thighs throughout a few points in the manga—most notably the principal, who makes the remark during their first meeting. Of course, this was all before they were pummeled by none other than Yami herself. She is well known for her all-black Gothic-style signature leather outfit. Her outfit has a star shaped gap at the chest of her clothing, which can also be found on the clothing of Mea and Nemesis. It also features two waist belts, five-leg belts on both of her legs, and two sleeves that attach to her upper arm via belt. Another notable aspect of her appearance are her silver and black hair clips on each side of her head which give her a cat-like appearance, possibly paying homage to the illustrator's earlier work, "Black Cat", from which her character design also originated. When the Darkness Transformation was activated, her appearance (mostly her attire) drastically changed. She donned a much more revealing leather outfit with red sharp claws on each of her fingers. Two black horns appeared on her head. Though she does come off as stoic, emotionless, and withdrawn in actuality she is pretty kind, but she would attack people who talks about something that she doesn't like. She also hates perverted people and normally attacks Rito (despite knowing its not his intention), who by his clumsy nature trips into her and gropes her, or the Principal, whose perverted nature makes him come running to her in almost no clothing whenever he sees her. Other people she has attacked include Saruyama Kenichi, Kotegawa Yū, and Motemitsu Taizō. She also has a weakness towards anything slimy and with tentacles. She is a mayadere. Yami is often reading books to understand Earth's culture and learn more about emotions such as love. She had been contracted to kill Rito, but after their initial meeting she chose to 'assess' him. Since chapter 158, she has begun showing small inklings of feelings towards him for not taking advantage of her while affected by Celine's pollen. In To Love-Ru Darkness Yami's feelings for Rito are shown quite a few times. He shows kindness to her, and because of this she's not sure about her feelings or whether she really wants to kill him but tries to convince herself that he is still her target. Strangely, he is the only person she has ever opened up to about her origin and about her old life before being an assassin, instead of to her closest friend Mikan, which is also something that confuses herself. One time she looked at him from behind holding a book titled "lovers", further hinting her feelings for him. She has a fondness of taiyaki, which was the first she eats after coming to earth which was also given to her by Rito, shortly before her attempt to assassinate him. It's stated that since becoming an assassin, Yami has never slept with a calm mind (her body always "standing" on guard), but she appears to have slept calmly ever since she slept next to Rito (Darkness Chapter 13). In the beginning, Yami wasn't always heartless and cold. Before she became an assassin, she was a happy, cheerful and playful little child, especially around Tearju, but was left heartbroken when hearing that she had left and Yami was left in the hands of the organization, Eden that made her the mostly emotionless person she is today. Had she not been raised by Eden, she would have likely had a similar personality to Mea. However, as the series progresses, she begins to show a more happy and gentle side from time to time and opens up more around others especially Rito, whom she shows love/hate feelings to. Since Tearju's arrival, Yami has remained distant towards her, although she still cares for her greatly. The real reason for this was because of her life as an assassin and what she became after they last met, she was afraid of the awkwardness between them. She once admit herself that being an assassin is even worse than "being a pervert like you". But with some encouragement from Rito and Mea, Yami slowly tries to become closer to Tearju. Yami is shown to evidently be shy, constantly avoiding mushy moments and Tearju, whom she still feels awkward towards. After she returns from her Darkness transformation, Yami's personality displays significant changes. While she is still mostly her usual self, she now has stronger tsundere tendencies, mostly regarding Rito. She has become much more angry and over-reactive when it comes to her feelings for Rito, whom she continues to deny having any feelings for. She also appears to be less stoic around Mikan, her best friend.At the end of To Love-Ru Darkness chapter 70 she accepted her feelings and told Mikan about her love for Rito and at the end of chapter 71 she commenced in a fight with Kuro in order to save Rito's life. She finally managed to defeat him by destroying his Gun. And after the battle Yami at last confessed her feelings to Rito.