Henkyou no Renkinjutsushi: Imasara Yosan Zero no Shokuba ni Modoru Toka Moumuri

One day, Roost, an alchemist, was suddenly told by the Alchemy Guild, his workplace, that the research budget of his Basic Research Division will be cut to zero. Roost, who had been treated as a lowly servant, decided to resign. Because a female knight, a friend from his school days who became the lord of a remote area, invited him to help cultivate her territory.

"I don't think there's much that an ordinary alchemist like me can do?"

But in fact, Roost was one of the best alchemists in the world, and the materials he made are too advanced for others to recreate. When Roost left, the Alchemy Guild was thrown into chaos, but it was too late. Roost arrived in the frontier region, and the people there appreciated him much more, as Roost, a modest but extraordinary alchemist, will help to tame the frontier through the power of alchemy!

(Source: MF Bunko, translated)