Ishura

Ishura (異修羅, Ishura) is a Japanese light novel series written by Keiso and illustrated by Kureta. It received manga adaptation by Meguri, titled Ishura - The New Demon King War (異修羅 ー新魔王戦争ー, Ishura Shin Maō Sensō).

Plot
In a world where the Demon King has died, a host of demigods capable of felling him have inherited the world. A master fencer who can figure out how to take out their opponent with a single glance; a lancer so swift they can break the sound barrier; a wyvern rogue who fights with three legendary weapons at once; an all-powerful wizard who can speak thoughts into being; an angelic assassin who deals instant death. Eager to attain the title of “One True Hero,” these champions each pursue challenges against formidable foes and spark conflicts themselves. The battle to determine the mightiest of the mighty begins.