The novel has been adapted into a book, to be released on 7/28 by M Novels. The protagonist, blacksmith Will Craft, loses his new shop and fiancée to his younger brother the day before his wedding. Despite working hard in place of his deceased father, he is betrayed and becomes furious. 'I don’t care anymore! I’m leaving!' Will decides to leave the capital and live freely. Meanwhile, his brother later learns that Will was maintaining the town’s barrier and the hero’s holy sword, among other things, while effortlessly producing 9,999 A-rank weapons a day. In fact, Will was the legendary craftsman, Hachibouzai, who had been fixing various items. His absence leads to the shop's collapse. Additionally, his ex-fiancée, a merchant, realizes that she was only doing business because she could buy Will’s weapons. Without him, she refuses to continue trading with the guild. Both the brother and ex-fiancée face ruin, while those Will helped become happier thanks to the legendary items he created.