A unique looking black-haired mongrel from the Ceres slums widely known as "Riki The Dark" for his proud and defiant nature. He is also the leader of the Bison gang. Eventually, he very reluctantly becomes the Blondy Iason Mink's Pet. He struggles with accepting his life as a Pet having been such a headstrong and independent gangster.
Adaptation Dye-Job: His eyes are made brown in both OVAs rather than the black they are described to be in the novel.
Ain't Too Proud to Beg: He was stubbornly too proud at first to ever beg for anything but then after instrumental conditioning with the Pet Ring, he became this trope. Not that he would ever admit it.
Became Their Own Antithesis: Compare and contrast slum mongrel Riki in his youth with Guy to submissive pet Riki at the end not wanting to leave Iason's side. Complete acceptance as a pet which he once saw as the worst possible thing ever.
Be Careful What You Wish For: Riki wanted to leave the slums at all cost thinking it would lead to a better life. He ended up living in Eos Tower of Tanagura. The extravagently luxurious home of the Elites and it turned out to be worse to him than the slums ever were.
Be Yourself: This was very important to Riki and he struggled with it to hang onto his crumbling Pride.
Big Damn Hero: In the 1st OVA series for all of Bison and for Kirie in the 2nd OVA series.
Bishōnen: Extremely good looking with fine features.
Jerkass Realization: Riki was a Jerkass to Guy in his younger days being totally prepared to leave Guy behind if the opportunity presented to leave the slums when Guy had always had his back. Then life as Iason's Pet and missing Guy by his side made him realize how much of a Jerkass he had been to Guy after the fact.
Red Oni, Blue Oni: Red at first to Guy's and Iason's Blue. Then later blue to both of the others' red.
Released to Elsewhere: Played with. After the "Daryl incident", the other Elites were lead to believe that Riki had been executed when he vanished from Eos along with Daryl by Iason. Riki had in fact been released back to Ceres. Raoul isn't happy when he learns Riki is alive a year later after Iason had simply explained that Riki was "gone". Riki was in fact told by Iason that Daryl was sent elsewhere when he, in fact, had been killed.
Robosexual: To a degree before learning what exactly Elites are. Riki's initial thought process upon meeting Iason; Is this guy really a robot? Can I have sex with him? If so, would it be satisfactory and would he feel like a person?
Roundhouse Kick: Good at these. Fought off a whole gang of kids by himself with well placed punches and kicks.
Satisfied Street Rat: Riki is a subversion. He maybe proud on the outside but was anything but satisfied from being raised in Ceres.
Secret Relationship: In the novel with Iason until Iason let's the cat out of the bag. Had one with Mimea as well for a brief time.
Think Nothing of It: Riki reluctantly formed Bison as a force to protect and stand up for those too weak to fight for themselves in the slums. This made him a hero in Ceres but it was nothing special to Riki.
This Loser Is You: After he got back to Ceres and he didn't let it affect his pride one bit.
Troubled, but Cute: This trope sums up his life story. Half of Riki's troubles come from the fact he's cute.
Tsundere: Far more tsun tsun to Iason than he is dere dere to Guy.
Uke: Riki is an interesting case in that he used to be a Seme or more accurately a Seke/Riba in a reversible relationship but is made into an uke by Iason.
Unwanted Harem: Throughout the story, Riki has no less than 2 different people chasing after him at one time. The obvious cases are Iason, Guy, Luke, Kirie, 2 different Pets and the remaining members of his gang that still respect his past relationship with Guy.
Unwanted Rescue: He didn't want Guy to save him since by then he wanted to be with Iason.
Younger Than They Look: The OVAs can cause confusion about Riki's age, in the 2012 remake, Riki is 15 when he meets Iason, and then after the three years, he'd be 18; though Riki's body is extremely well-built, even at the age of 15, making him look 19 at 15. In the 1990's OVAs, Riki states he's over 20 after being sent back to Ceres, so how old Riki is exactly is unknown; at least in the anime that is.
The top ruling Blondy of Tanagura's Elite who is also the head of The Syndicate and in charge of the Black Market. After he runs into Riki, he makes the unusual decision to make the mongrel Riki his pet. He later falls in love with Riki and refuses to let go of him despite the dangers he faces as a consequence.
Crazy Awesome: Invoked by the other Blondy Elites when Iason demonstrates the abilities of the D-Type Ring at Riki's second debut party at their requests. They think he is perverse, mad, yet a Demi-God among them for his uniquely ingenious method to house break a wild slum mongrel like Riki. Raoul is especially reluctantly impressed with the results.
Kneel Before Zod: Wants Riki to be absolutely submissive to him and commands Riki to do this.
Large and in Charge: The novel describes Iason as the tallest of the Blondies at 198 cm and the highest ranking one.
Light Is Not Good: The highest of the Blondies and often wears white. However, Iason isn't exactly a benevolent character seeing how he runs the Black Market and particularly Guardian for the sole purpose to find potential Furniture.
Love Epiphany/Green-Eyed Epiphany: Iason is at first confused about his feelings for Riki and wonders if it's really love. Then he is forced to realize and stop denying his feelings of love for Riki when he becomes very jealous and hateful of Mimea after she slept with Riki.
Love Hurts: Unimaginably so for an artificial being that wasn't supposed to have any human feelings.
Loophole Abuse: Claims he doesn't have to follow Pet protocols (such as discarding a pet of a certain age) with Riki because he's a mongrel, has no official identity and thus the rules don't apply to him.
Love Redeems: Riki believed this enough to join him in death.
Paper-Thin Disguise: In the novel, when luring Riki into a trap. He wore a short brown hairdo in Mistral Park to remain incognito. Nobody recognized the Blondy except for Riki who followed him.
Pet the Mongrel: After reclaiming Riki, he eventually became gentle and kind to the mongrel the second time around. Some moments were downright sweet, awe inspiring yet disgraceful and disgusting to all of the other Elites.
Pride: Iason's high and mighty Blondy pride is severely affected by his love for Riki and is a contentious issue with the other Elites. It is slowly chipped away the deeper he falls in love.
Seme: Iason is a dominating and controlling Blondy.
Sexbot: Mentioned by Iason himself (and then again by Katze) when he says he won't let Riki go even if he's reduced to this as an artificial human that has become addicted to sex with his human Pet.
Sex God: This is In-Universe and Riki even reflects on Iason's abilities and techniques with his perfect Artificial Human Elite body surpassing a Sex Bot's (and so too would the other Elites). Since Iason is the only Elite engaging in sex, he is this. Being able to grow even bigger at will when he has already proven Bigger Is Better in Bed goes hand-in-hand.
Sexual Extortion: Does this to Riki when he has Guy (bought from Kirie in the novel) and threatens to make a Pet out of him unless Riki agrees to return to Eos and willingly be his Pet.
Straw Vulcan: Played with. Iason actually favors his newfound humanity. His unusual actions regarding Riki force the other Elites to find fallacies in what they considered common sense and re-evaluate their view of Pets as objects and not people.
Sugar and Ice Personality: Iason is seemingly cold and distant like all Elites but harbors a passionate love for Riki that would do anything for him.
The Syndicate: Iason is the head of it so even crime in Amoi is manipulated as a means to keep it under control. The Black Market is an extention of this.
Tragic Villain: Iason wants Riki to love him but Riki hates him for having been kidnapped and made a Pet. Iason is aware of this fact but refusing to let Riki go, continues to push for Riki to accept being a Pet because it is the only way they could be together in their Fantastic Caste System.
Xanatos Gambit: Letting Riki return to Ceres for several reasons which would all benefit him no matter the outcome. Also produced an..
Unintentional Backup Plan: Riki abstained from sex for over a year when he was back in the slums. Iason takes great advantage of that by exploiting it.
Xanatos Speed Chess: No matter how hard other Blondies like Aisha Rosen and Orphe Zavi tried with plots to be rid of Riki, Iason smoothly handled any situation to keep Riki as his Pet.
Yandere: For Riki. For some perspective, a quote of Iason's to his beloved Pet:
"I so cherish these enlivening moments when you defy me even as a Blondy. When you react to me so humanly, I feel myself tingling right down to the center of my brain. I love how you look at me with such undisguised disdain. It's so endearing, I want to rip out your beating heart and press it against my cheek."
Yank the Mongrel's Chain: Coming back to tell Riki that he had never been freed since his Pet registration wasn't cancelled and that going back to Ceres was only temporary.
Riki's former pairing partner and acting leader of the Bison gang during Riki's absence. He is fiercely devoted to Riki and still in love with him. He resolves to retrieve Riki at any costs when he finds out Iason has been keeping him as his pet.
The second Blondy in command of Tanagura and Iason's close friend. He is a Bio-Chemist specializing in breeding top class Pets. He vehemently disapproves of Iason choosing Riki as a Pet and giving him special treatment.
Pretender Diss: Suffered this a few times for not being able to match up to Riki.
Replacement Goldfish: For the members of Bison except for Guy. After Riki vanished, they gravitated to Kirie because he was so similar to Riki. Kirie proved to never be able to fill in the hole Riki left.