Red Oni, Blue Oni/Fanfic


 * In the Great Chicken Miasma's Mario fanfic Better Off Alone, the young Yoshi Waffles is the Red to everyone else in the group's Blue.
 * In kirbystarwarior's 'Disgaea: Jewel of the Gods' fanfic, Laharl is the red oni to Adell and Mao's blue oni.
 * Adell can also, arguably, qualify as the red oni to Mao's blue oni.
 * Winter War gives us Ikkaku and Nanao, the co-leaders of the Hueco Mundo mission. Ikkaku is a Hot-Blooded Blood Knight with a newly acquired habit of giving nicknames and a physical fighter with no aptitude for kidou. Nanao is a serious, methodical, control obsessive Badass Bookworm and kidou specialist who so far has avoided hand-to-hand combat.
 * Eri's Game has Eri as the Red Oni and her best friend, Shiki, as the Blue Oni.
 * Calvin and Hobbes The Series has Dr. Brainstorm as the red oni, with his Foil Jack being the blue.
 * To Kill a Thief has Light Yagami as red due to being crazy with Knight Templar ideas, while his partner, Miyako Toudaiji, is blue due to being sane with By-The-Book Cop tendencies.
 * In White Rain, it is Sasuke who is the Red Oni to Naruto's Blue, strangely enough. Their relationships also have the same distinction.