Don't know where to begin?

While ultimately it doesn't matter which arc you begin with, Cecil arc is recommended if you want my recommendation.

And then Masu arc + Shattered union arc. 

Feel free to visit the lore section as well which holds stories of its own.

Black Knight arc (4)

Eran Gro, the Black knight.

This is his story.

[The black knight arc] [1] [Eran Gro] [9605]

This arc is about Eran Gro, one of the most powerful/skillful swordsmen in the era. Later, he will be known as the black knight.


[The black knight arc] [2] [Doubtless] [9609]

[The black knight arc] [3] [Burning festival] [9651]

Martian burning festival through Eran Gro’s eyes.

[The black knight arc] [4] [The Black knight] [9705]

Hurray for Eran Gro because he earns his signature blade as well as a wife in this episode.

I consider this story better than most and the outcome of this story was the exact opposite of my original plan. No one was supposed to die in my original plan but, once the story started to get going, it turned out like this.