Hazure Skill "Sekai Toshokan" ni Yoru Isekai no Chishiki to Hajimeru "Sangyou Kakumei": Fire Arrow? Urusee, Kocchi wa Rifle da!!

In the Vermilion Kingdom, only fighting ability is valued. Prince Grace, the youngest brother, possesses only the useless skill "World Library," which has nothing to do with military or magical power, so he is appointed as the lord of the remote land of Asgard... or rather, he is banished. Arriving in the "farthest wasteland" with his childhood friend, a magic swordsman, and an understanding dwarf blacksmith, Grace discovers something incredible!!!

(Source: Suiyoubi no Sirius, translated)