In a world where aptitude for magic is determined by a crest. At the age of seven, Alec, the sixth prince of the sacred Luxian Empire, was given a crest of [Dark Magic], which is said to turn him into a demon as soon as he uses it. Scorned by those around him, Alec became a shut-in in the palace, and in the last days of his life, he used [Dark Magic], which he had never used before, in the hope of getting a good glimpse of it. However, Alec's crest was actually a special one that allowed him to use [Dark Magic] without having his body taken over by a demon! He died as he was - but when he woke up, he was back to his childhood! Reverting back to his seven-year-old self, Alec uses [Dark Magic] to turn all kinds of demons into his dependents, and together with his strongest companions, he builds an ideal country...!

Hiel was ridiculed for having a useless crest and was exiled to a remote island. When he grabbed an ice axe to reclaim the island, the true effect of his crest was revealed. With his production cheat, he will reclaim this uninhabited island and start his life in paradise.

Joshua is an overworked, underpaid production mage for the prestigious Knights of Schwarz order. When the order’s corrupted commander dismisses Joshua from his toxic job, he embarks on a quest for a new purpose. Along the way, Joshua’s path intertwines with Illya, the princess of a Demon tribe, whom he saves from hunters targeting “demi-humans.” As thanks, he’s welcomed to the Demon tribe village. Witnessing their torment by the Demon King’s army and slave traders, Joshua resolves to employ his production magic to aid them. Get ready for a fantasy where the greatest production mage and his friends work together to craft a splendid nation! *Source: Manga UP! Global*

Emperor Ludis suffered an unjustified death because of his Emperor’s Mark, which allowed him to make servants out of monsters. But instead of dying for good, he reincarnated a thousand years into the future. His previous life gave him no freedom, so this time, he’ll take it all and travel the world as an adventurer! But although he pretends to be normal, he gathers servants again and becomes the strongest adventurer! Come see what adventures await Ludis in this monster-filled isekai fantasy! *Source: Manga UP! Global*

In a world where crests decide one’s fate, Prince Heale is born with Cave King—a crest just as worthless as he is. Deemed a disgrace to his family, he’s exiled to a barren, deserted island with not a plant nor soul in sight. Alone, miserable, but determined to survive, he reaches for a pickaxe to expand the cave he intends to make his new home—and discovers the true power of his crest! It turns out Cave King makes cavern mining as easy as breathing. And as Heale digs deeper into the island, he discovers one otherworldly mineral after another. Who’s worthless now? But valuable ore isn’t the only thing Heale finds on his mining adventures. He soon befriends slimes and saves goblins that wash ashore. And together as one big family, they’ll work to overcome any challenge on the road to developing the island into their own little paradise. *Source: J-Novel Club, Vol. 1*

F-class tactician Akito visits his new lord with his summoned master pieces, the slime "Rin" and the golem "Benke", but the only 10-year-old girl, Sule, appears there. . A frontier land ruled by Sule, Arstatt is an “abandoned land” surrounded by demon lord territory and on the front line without reinforcements. In a town that has lost order, human trafficking is rampant, and the Demon King's army is approaching right there. Tactician Akito stands up with his mentor to survive the desperate situation...