Kuroyukihime

Kuroyukihime (黒雪姫, Kuroyukihime; Literally meaning "Princess Snow Black"; lit. Black Snow Princess) is one of the main characters in the Accel World series. She is the current leader of the Black Legion, Nega Nebulus and was formerly known as the Black King (黒王, Kuroō), but hid after defeating the former "Red King". Her biggest ambition is to reach level 10 and meet the creator of the Brain Burst game, but to accomplish that goal, she has to defeat five other level 9 users who just so happen to be "The six kings of pure color", the leaders of the six most powerful factions in the Brain Burst world.

Arita Haruyuki

Haruyuki Arita (有田 春雪, Arita Haruyuki) is the main protagonist of the Accel World series. He's known by his Brain Burst avatar Silver Crow (シルバー・クロウ, Shirubā Kurō) for his flying abilities, because he is the only brain burst avatar that can fly. He decides to team up with Kuroyukihime to defeat the The six kings of pure color and meet the creator of the Brain Burst game.

Accel World Introduction

Accel World Description:

 

Plot Summary: One autumn day in 2046, Haruyuki has an encounter with Kuroyukihime, the prettiest girl in his school. For the middle school boy who is often bullied, the meeting changes his life. Through a mysterious piece of software from her, Haruyuki learns of the existence of the virtual Accel World. In that moment, the lowest of the "school caste" becomes "Burst Linker", a knight defending a princess.