Arvin

 (アーヴィン, Aavuin) was a former slave who was bought by Mukoda Tsuyoshi to work in his business. He is younger than his twin Luke. One time, he and Luke ate Fel's meal, causing the Fenrir to throw the twins and Mukoda into an Orc settlement. 24 years old twin brother both big and muscular with a height over 190cm, former C Rank Adventurer.