ZeroQuest is a voluntary carbon reduction reward application that fuses blockchain and AI. It provides users with a lifestyle where they can voluntarily reduce carbon emissions in their daily lives and pursues Zero to Earn (ZtoE) rewards for achieving carbon reduction. The Web 3.0 application records IoT data related to carbon reduction on the blockchain and rewards voluntary carbon reduction with ESG points through AI analysis. ESG points earned as rewards can be swapped for ESG tokens, which can be invested and cashed out.