Kokkyou no Yuusha Echo

Echo, a hobby elf who records everything in the world in a sketchbook. She was a hero who was chosen by the foreshadowing of the coming of the Demon Lord! However, such a serious mission is where the wind blows, and Echo happily records the climate and monsters of each region, and travels around the countries freely. Meanwhile, he meets Dobel, a mysterious warrior with full-body armor. The encounter between the two was the beginning of an adventure full of more surprises and discoveries...! Source: MU