Akumu: The Avatar Avenger

 is an American-action comic book series based on Avatar: The Last Airbender and The Legend of Korra by Nickelodeon.

Plot
A half human and half bender boy named Akumu, dreams of becoming the Avatar just like Aang and Korra. Until She-ran, who hated the non-benders, wanted to exterminate all of the non-benders

Main

 * Akumu - a human/bender hybrid who is on a quest to become the avatar, master of all four elements.
 * Cheefuu - a childhood friend of Akumu

Supporting

 * Avatar Korra - the 2nd Avatar and the spirit who guides Akumu on his journey of being the Avatar
 * Mako - a firebender who was an ally of Korra before she passed away.