Magic Knights are modern magic-users who fight with weapons converted from their souls. Ikki Kurogane goes to a school for these Magic Knights, but he is the "Failed Knight" or "Worst One" who is failing because he has no magical skills. However, one day, he is challenged to a duel by Stella, a foreign princess and the "Number One" student. In this duel, "the loser must be obedient for life."
"Ikki Kurogane walks in on Princess Stella Vermillion changing clothes. A duel will settle the matter, but Stella raises the stakes, obligating the loser to lifelong servitude."
"Ikki\u2019s sister, Shizuku, enrolls in the school and causes quite the commotion upon seeing him. With Shizuku's arrival, Stella learns more about Ikki\u2019s history."
"Shizuku invites Ikki to go shopping, but is annoyed when Stella joins them. Ikki meets Shizuku\u2019s roommate, whose device helps the group as they encounter some serious trouble!"
"Ikki\u2019s first official match approaches! Unfortunately, he and his opponent, Shizuya Kirihara, have a history. Worse, Kirihara has the immediate upper hand due to his device."
"As a result of his selection match performances, Ikki gains an unexpected following. Kagami gives Stella some advice that may save the princess and Ikki from parting ways."
"Another student wishes to be Ikki\u2019s pupil, but doesn\u2019t quite know how to ask. Despite her initial awkwardness, Ayatsuji proves to be a hard worker and talented with a sword."
"Ikki\u2019s impending opponent might be the most difficult one yet. He\u2019ll have to rely on his skill and determination to help a friend rediscover their honor."
"In an effort to help Ayase and her father, Ikki challenges Kuraudo Kurashiki, a swordsman from Donro Academy with the nickname \u201cSword Eater\u201d."
"Shizuku's next opponent is none other than the student council president, Toka Todo. In the clash between lightning and water, which blazer will emerge as the victor?"
"An innocent kiss shared in secret becomes the catalyst for a scandal, and Ikki is taken by the ethics committee on counts of \"indecent\" behavior with the Crimson Princess."
