Junjou Romantica: Pure Romance, stylized as Junjou Romantica ~Pure Romance~, is a yaoi series by Shungiku Nakamura. It focuses on three storylines; the main couple, which comprises the bulk of the books, and two other male couples that provide ongoing side stories. It has expanded into several cd-dramas, a manga series running in Asuka Ciel, a light novel series titled "Junai Romantica" running in The Ruby magazine and a 24-episode anime series.

Shungiku Nakamura has written a spin-off to Junjou Romantica, titled Sekai-ichi Hatsukoi focusing on a shōjo manga editor and his first love, which was also animated by Studio Deen in 2011.

The crown of England has been hotly contested throughout history, and in the Middle Ages, a series of great civil wars became known as the War of the Roses. Claiming a right to the throne, the Duke of York seeks to unseat King Henry VI and his heir in order to become king himself.

First-year Toono transfers from Tokyo to the all-boys boarding school deep in the mountains, "Mori Moori Private School." The friendly Yaguchi who calls out to him becomes his only friend, but his dislike of sports makes him join the most laid-back looking photography club instead of Yaguchi's soccer club. However, the photography club is in name only and is actually nicknamed the "Yarichin Bitch Club," filled with colorful seniors. In contrast to the troubled Toono, Kajima, who joined the club at the same time, is completely unphased and even slips a confession to Toono into the confusion. Toono himself thinks Yaguchi is cute, but Yaguchi finds himself blushing around Kajima and stuff happens. Furthermore, complications arise between the seniors…

An aimless young man named Toshiaki Gozu is killed on page 3, and resurrected as a background character in a game world he has been playing. Gozu encounters the Demon King Evelogia, the game's last boss whom Gozu has adored since he was little. Gozu begins to woo Evelogia by admitting, "I fell in love with you." Together, they aim to conquer the world.

Koichi, a student about to graduate, is summoned to a world of Titans. It's the land of Tildant, where the prince, Caius, appears in front of Koichi and says, "I want you to be my bride and give birth to my baby!"

In a world where select mortals can ascend to godhood and achieve immortality, the disgraced Crown Prince of a centuries-old fallen kingdom ascends to Heaven for the third time after two consecutive demotions, to the dismay of other Heaven Officials. With almost 800 years since his last ascension and all his worshippers long perished, he decides to exorcise ghosts in the mortal world to help him sustain his divinity. An unanticipated encounter with the enigmatic Ghost King whose disdain for the Gods shakes the Heavens finds him solace after prolonged habituated loneliness.

Yuuri Katsuki carried all of Japan's hopes on his shoulders to win at the Gran Prix Finale ice skating competition, but suffered a crushing defeat. He returns home to Kyushu and half feels like he wants to retire, and half feels like he wants to continue ice skating. Suddenly the five-time consecutive world championship ice skater Victor Nikiforov appears before him with Yuri Plisetsky, a young Russian figure skater who is already defeating his seniors. Victor and both Yuris take up the challenge on an unprecedented Gran Prix series.

Shibuya Yuuri, an ordinary high school boy got flushed in a toilet and he saw himself in another world. He was then declared as the 27th maou or the demon king of the Demon world by Gunter von Christ and Konrad Weller . When Yuuri now travels back to his new home (the castle), he meet up with Konrad's brothers. Wolfram von Biefield became Yuuri's fiancee when Yuuri slapped him for defending his mother's name. As a result, as the aristocrats tradition to propose a marriage, is by slapping one's left or right cheek with the back of your hand. By the time that Wolfram throw the knive and Yuuri picked it up, it means a battle between them. in their fight, Yuuri dodged Wolfram's majutsu and it hitted the girl just beside His Majesty. Yuuri got angry and turned into Maou, and punished Wolfram using his water majutsu. Yuuri fainted and when he came to senses after 3 days of sleeping, he did not remember anything that happened including using his powers.

First-year Toono transfers from Tokyo to the all-boys boarding school deep in the mountains, "Mori Moori Private School." The friendly Yaguchi who calls out to him becomes his only friend, but his dislike of sports makes him join the most laid-back looking photography club instead of Yaguchi's soccer club. However, the photography club is in name only and is actually nicknamed the "Yarichin Bitch Club," filled with colorful seniors. In contrast to the troubled Toono, Kajima, who joined the club at the same time, is completely unphased and even slips a confession to Toono into the confusion. Toono himself thinks Yaguchi is cute, but Yaguchi finds himself blushing around Kajima and stuff happens. Furthermore, complications arise between the seniors…

Nature made Ash Lynx beautiful; nurture made him a cold ruthless killer. A runaway brought up as the adopted heir and sex toy of "Papa" Dino Golzine, Ash, now at the rebellious age of seventeen, forsakes the kingdom held out by the devil who raised him. But the hideous secret that drove Ash's older brother mad in Iraq has suddenly fallen into Papa's insatiably ambitious hands—and it's exactly the wrong time for Eiji Okamura, a pure-hearted young photographer from Japan, to make Ash Lynx's acquaintance.

After finding himself reincarnated into the world of a novel, Loneal goes to great lengths to steer clear of Prince Alec, the hero, to avoid disrupting the main storyline between Alec and the heroine, Lily. However, to Loneal's great surprise, the prince becomes infatuated with...him?! "A charming physique, such as yours, more than makes up for your lack of experience." Before he knows it, he finds himself melting into the prince's arms... Why is everything so different from the novel?!

The story revolves around Haruka Nanase, a boy who has always loved to be immersed in water, and to swim in it. Before graduating from elementary school, he participated in a swimming tournament along with his fellow swimming club members, Makoto Tachibana, Nagisa Hazuki, and Rin Matsuoka. After achieving victory, each of the boys went their separate ways. Time passed, and in the middle of their uneventful high school lives Rin appears and challenges Haruka to a match, showing Haruka his overwhelming power. Not wanting it to end like this, Haruka, gathers together Makoto and Nagisa once again and brings a new member named Rei Ryugazaki to create the Iwatobi High School Swimming Club in order to defeat Rin.