Plot

In a world where dragons rule sky, sea, and land, dragon hunter Ragna joins forces with the mysterious Crimson to fight the dragons at any cost and destroy the dragon monarchs.

Ragna teams up with the enigmatic Crimson in order to stand against the dragons menacing the world. Although Crimson's motivations are mysterious, his goal and Ragna's perfectly align, and together they will vanquish the dragons once and for all.—HIDIVE

Ragna, along with his partner, the strongest dragon hunter Leonica, is a dragon hunter. Despite his lack of skill in dragon hunting, he had made the decision to give her his entire life. He was nevertheless shown by his future self how true sadness would feel if he continued to be as weak as he is right now. The reaper of the dragons now appears to have emerged earlier than the original history, but will this be sufficient to alter the future?—Bilibili TV

In a world where dragons rule sky, sea, and land, those who would fight them and win must surpass the limits of normal human strength. Set on victory at any cost, dragon hunter Ragna joins forces with the mysterious Crimson. Crimson's motivations may be obscure, but their goal is the same: to destroy the dragon monarchs.—Square Enix

A job to wield a sword, kill dragons, and be rewarded for it, the "dragon hunters". Ragna is an amateur dragon hunter. Together with Leonica, a child prodigy who boasts a shocking number of dragon hunts, he challenges himself to dragon hunts day by day. Ragna has only one wish: "I don't even have to be strong, I just want to stay by Leo's side forever." An assault from the most evil strongest dragon ripped his fleeting wish to shreds. The one he challenges is the absolute strongest of them all. The one he defies is the inescapable fate. Beyond the limit, there it lies... The extreme super austere parallel universe battle.—Muse Asia