Without rest, Joshua worked as a Production Magician with low pay for a black knights order.... more>>

Within this cruel environment, he was asked to increase production. But when he discovered that his weapons were being used for s*ave hunting, Joshua confronted Captain Royg.

However, Royg said that Joshua was arrogant for being a mere crafter, and fired him.

And so Joshua headed south in search of work. On the way, he saves a beautiful Kijin girl, and he decides to make tools and weapons for them in order to help with their primitive lifestyle.

However, there was something that Joshua and Royg did not know.

As Joshua’s production magic had been mastered in the black environment, he had now become the greatest Production Magician in the whole world. Furthermore, he also had the strongest magic of any magician.

The knights order fell so low that they couldn’t buy anything, once they had lost him. But as for Joshua, he would enjoy his pleasant crafting life on the frontier. <<less

Heal, the 17th prince of the Kingdom of Sanfaris was born with an unknown crest that he was unable to activate.... more>>

Because of this useless crest, he was relegated to being lord of a remote island by his father, the king.

Of course, there were no people there, nor were there any trees or plants. It was an island with just a single cave.

However, the moment that Heal picked up the pickaxe inside of the cave, the ‘Cave King’ crest was activated. Its effect was specializing in mining, allowing him to efficiently mine all kinds of ore.

Among the ore that could be mined on the island, there was even some ore that magic ability and ore that extended one's lifespan…

Heal would become so engrossed in mining, that he would eventually create the strongest country. <<less

A world where someone’s magic and affinities are determined by their Crest. In that world, everyone had high hopes for Alec, the 6th Prince of the Holy Luxia Empire, due to his large mana capacity.... more>>

However, after he receives the Dark Crest best suited for using Dark Magic at seven years old, their attitudes do a complete flip.
Users of Dark Magic all turn into demons sooner or later, so Alec having a Dark Crest best suited for using that comes to be called cursed and gets spurned by everyone.

Becoming closed off from people, he stays in the palace until he turns twenty, when a revolt sparks in the empire.
Left behind in the palace, he drinks poison before trying out his Dark Magic once, but....

Alec was able to use Dark Magic without turning into a demon.

As Alec’s consciousness gets swallowed by darkness, he regrets not being able to master Dark Magic, so he makes a wish────To redo everything.

This is a story of a man with a cursed Crest starting his life over again. <<less