On the planet Amoi, a person's status is primarily dictated by the color of their hair. This society is run by the AI supercomputer known as Jupiter and its governing board of perfect blondes, referred to as Blondies, living in the capital city of Tanagura. However, the darker-haired humans live out their lives in the golden "pleasure city" of Midas and its outlying slum Ceres. They are known as "mongrels," and most cannot progress out of the slums. Three years ago, a boy named Riki disappeared from the slums of Ceres. Once the revered leader of the gang Bison, a sudden encounter with an elite Blondie, Iason Mink, forced Riki to abandon everything he had cultivated. The boy was snatched from his home and forced to become Iason's pet. Riki has spent the past three years enduring numerous blows to his pride, his time in Tanagura nothing but a form of torture. Now that Riki has returned, Bison once again rallies behind him. The risk he finds himself in, however, is much greater than ever before—there is always someone ready to sell him out. [Written by MAL Rewrite]

Young kendo prodigy Ranmaru Samejima captures the attention of Kei Enjoji, the illegitimate son of a yakuza boss. Kei, determined to form a bond with Ranmaru, cultivates a friendship built on trust and sacrifice, which soon turns into love. After saving Kei from a yakuza hit-and-run attack, Ranmaru is forced to give up kendo forever, and the two are left with only their faith in one another. Vowing to support each other far from the world of the yakuza, the two begin living together as a couple. However, when a mysterious figure from the pair's past returns in pursuit of Ranmaru, they are thrust back into the world they fought so hard to leave—and their love may not be strong enough to survive it. [Written by MAL Rewrite]

Asumi Kouya is a college student who wants to earn some extra money. Utilizing his talents for cooking and cleaning, he accepts a part-time job as a housekeeper. His employer is single father Keiichi Naruse, an attractive young man with a troubling history regarding his former staff. Naruse's time is constantly dominated by work and his adorable son Ichika, and he rarely gets time to himself. Cleaning the man's room, Asumi gets a startling insight into just how frustrating the life of a single parent can be. He finds a pile of adult videos, which results in plenty of implications. Despite Naruse being a man, Asumi finds himself completely drawn in by his employer's beautiful face and gentle personality. With the promise of allowing the frustrated father sexual relief, Asumi's life as part of this small family has only just begun. [Written by MAL Rewrite]

Chisato Takatsukasa, a 35-year-old author, has such a youthful appearance that anyone would think him to be in his early twenties. His work is inspired by his idol—the best-selling mystery author Saki Shunka, who is as much of an enigma herself as the plots of the books she writes. Chisato is also the extremely overprotective father of 15-year old Riju, convinced that the "friends" his son constantly brings over are nothing but predators waiting for the perfect opportunity to defile his precious boy. As a result, Chisato will stop at nothing to ensure they never come over again, resorting to the most extreme of methods. There is not a man he hates more, however, than Riju's rather persistent best friend Shunsuke Sakaki, who just won't go away regardless of what Chisato tries to do. But the motivations of these characters lie as secrets bubbling just below the surface. Why is Chisato so wary of Riju's friends, and what exactly does Shunsuke know about the mysterious author his friend's father idolizes? [Written by MAL Rewrite]