1K no Ou-sama

Welcome to Cafe Otoko, staffed by a host of talented men who are just as skilled in the kitchen as they are in the bedroom! Follow the relationship ups-and-downs of its employees as each man strives to find – and conquer – his true love.

Shinonome Neo is 28 years old and single. During his school life, he was disturbed by his senpai, Maki Yuuki. That is how, ten years later, he can't trust in other people or even have a girlfriend; when he receives an invitation to Maki's wedding, he decides to take revenge and spoil it… But destiny is cruel with Neo and he dies… After this, his spirit travels back in time and gives him the oportunity to change everything by avoiding the ruin of his entire life and his death. With the help of the 15-year-old Neo, he is going to change the future.

1: Prince vs. Slave The youngest (seventh) prince Shuki is hugged by the new slave, Fuanron, who seems to know the young prince. Shuki starts to bully the slave until their roles get reversed and he even takes place of the prince's teacher, Riiren. Who is Fuanron in reality? 2: Prince vs. Assassin The first prince, Ryuuen, gets attacked by Seiran, but he defeats him and makes a deal: the assassin can try to kill him at any time, but if he fails, then he must spend the night in the prince's embrace; and so starts Seiran's life as an official consort. 3: Right-handed Priest vs. Left-handed Priest Rei has been in love with Ryuuen (the first prince) for years and now he has finally become the minister of the right. He thinks he can get closer to the first prince, but there is an obstacle: the minster of the left, Rai, who also claims to be in love with Ryuuen. 4: Mecenary vs. Prince The sixth prince, Kagetsu, fell in love in Jin, who helped him with his wounded feet. Now he escapes from the castle everyday to tell Jin that he loves him, but the mercenary doesn't believe him. Suzaku always comes to drag Kagetsu back to the castle, but what are his real motives?

Rau, the young master of a noble family, left home when his father issued an ultimatum: "get married or no inheritance!" His only ally was his faithful butler, Gai, who had been taking care of him since he was little… or at least, he'd thought as much. However, Gai hardly seemed sympathetic to Rau's plight, nor did he show any reaction to Rau confessing his love for him. Things finally came to a head when Rau was tricked into a marriage interview… Who indeed was the butler's true master…!?

Hinata has never had any experience with love for his 19 years of existence, and he finally manages to snatch a date with the help of a classmate. Having no experience with girls, Hinata asks his best friend Yuuma – who seems to have had many experiences of his own – for help. Yuuma teaches him how to seduce a girl, but then, something happens?

Possesssing a body that sends out pheromones which make people abnormally fascinated with him, one day he accidentally summoned a man who calls himself 'Jin' and is supposedly a devil. "I will help you make your every dream come true." Listening to to Jin's seductive whispers, he can't help but ask him to cure his problematic body. But unexpectedly, this is the start of an obscene contract…? The price to pay for this contract is to have 24 french kisses or have sex with the devil everyday?! This is the love story of a seductive devil and a pretty uke!

Takayoshi, a model, is currently employed by Kairi the photographer. Kairi's intense gaze makes Takayoshi flustered… why is he constantly looking at him like that?

Chisato is a beautiful 35-year-old writer (who looks eighteen really), father of Riju – a cute 15 year-old-boy. Chisato's hobby is to drive away all of Riju's friends because he thinks they want to rape his precious child. So he shows his good side to these boys while he poisons the cake he brings them with a smile. However, there is one guy, Shunsuke, who doesn't fall for these tricks. But is Shunsuke really aiming for Riju? Who is that mysterious writer Chisato loves so much? And why is Chisato convinced that Riju's friends want to take advantage of him?

Ao works at a kindergarten, where he has a crush on one of the parents, Haizaki-san. Ao's twin brother Midori shows up at his place one day, announcing he's got a new boyfriend. However, knowing Midori's track record, Ao is worried. After an argument, Midori tells Ao to see for himself by impersonating him on their next date. To Ao's surprise, he winds up on a date… with his crush!!!

1-4: King Game Renge, second prince of our favorite royal family, is sent to a neighboring country as collateral in a foreign relations deal. When things turn sour between their countries, he becomes a virtual hostage of a tyrant King, Ouga. 5: King Game: Sixth Prince vs. Third Prince Homura, third prince, fell in love in his brother, the sixth prince, Airi, when they were kids. The younger prince was very sickly at that time and his brother started to learn medicine (with poor results) in order to heal him. Now they are grown up, they are lovers (by name only) and Airi is bigger and no longer sick or weak, but not in Homura's eyes. The sixth prince decides to change that. 6: Kaizoku Game: Pirate vs. Fifth Prince Fifth prince Yuuri tried escape from the castle and ended on a pirate ship belonging to Kuuron. From this pointn the young prince starts living on the ship and being the captain's "woman".