Henkyou no Renkinjutsushi: Imasara Yosan Zero no Shokuba ni Modoru Toka Mou Muri

Rust, who was in charge of the Basic Research Department at the Alchemy Association, decided to quit after the budget assigned to his department was slashed to zero. With his newfound freedom, he decides to help with the development of a a frontier territory that's under the control of an old friend.