Eight words describe the feelings of Youtarou Hanabusa: "I just want to live a normal life." Unfortunately for him, as a member of the Knights of the World, his training in this ancient and international order has left him with a condition he calls "White Knight Syndrome." This condition causes Youtarou to instinctively act heroically and chivalrously whenever he encounters someone in danger.

To protect his identity in such embarrassing moments, he carries a mask with him at all times. Then one day, he saves the life of Makio Kidouin, the young daughter of an elite and affluent family. Little does he know that this singular act of heroism will change his life forever. Soon, he is simultaneously blessed with a life in the lap of luxury and cursed with one of abnormality, for his new friend Makio lives a life far removed from the everyday.

Between coping with the hijinks of six-year-old Makio, and dealing with a cast of odd friends and scheming enemies, Youtarou must protect his new friend while keeping his identity hidden as the masked hero Knight Lancer.

[Written by MAL Rewrite]

60 years ago, a strange case of insomnia struck the population, forcing them to stay awake for more than a full week. The victims, completely sleep deprived, all went mad. To cure this illness, a new medicine was produced, but the side effects turned the patients into vampires. Humanity went to war against this new species and triumphed, but some of the vampires managed to survive. Born from a Human and a Vampire, the main character Mi Liu, "The Child of Hope," is to represent the new hope that will connect the two species. Ringleader of a bank robbery, Mi Liu is arrested and transferred to a special prison of the National Defense Agency that monitors Vampires. Trying to break free with Anji, Mi Liu is attacked by strange monsters and he finds out that the prison location corresponds to the birthplace of Vampires, the old capital "Blue Town." Why are Vampires trapped in Blue Town? What are those strange monsters attacking them? Our heroes must fight to solve those mysteries. (Source: Emon via ANN)

A next fierce fight is about to begin after Katta Kirifuda finally become the Duel Masters National Tournament champion. Japan's largest theme park, Duel Masters Land has appeared. With numerous fun attractions and events, Katta was also having fun. However, after meeting the mascot of the park, "Duemouse", Katta got involved in a ridiculous conspiracy of the park. A shadow that invades the Duel Masters World, which is the mysterious team of duelists! The mysterious identity of the legendary card is to be revealed. A new stage and revolution of Duel Masters befalls Katta! (Source: Duel Masters Wikia)

It was Meiji 38 (1905), the Russo-Japanese War that had begun since the previous year was getting hard. In this severe circumstance, they reorganized the Raimu Squad. The members of the Raimu Squad were the girls. They were just like other ordinary girls who went to schools and yearned for love, except that they had "Raimu." Inukai Tsuyoshiro was a young man who was newly chosen to be the leader of the squad. He was ambitious to fight for Japan. When the young man met the five girls, the new chapter of "Raimu" began.