Isekai de Te ni Ireta Seisan Skill wa Saikyou datta You desu ~Souzou & Kiyou no W Chiuto de Musou Suru~

29 year old Kou Kousaka is an ordinary salaryman working overtime in a black company when he dies and is sent to another world. He is given the option to become a sage, hero, or demon king. However, he chooses none of them and instead acquires a hidden skill: the ability to store items in a limitless inventory, immediately dismantle them into materials, and then use them to create something new.