Soul Society is a Web3 social service that utilizes Soul Bound Tokens (SBTs). In Soul Society, users encounter their daily lives as Quests within a large dungeon that is based on reality. By completing these Quests, they earn various rewards, including SBTs. Unlike standard SBTs, which just represent a user's identity, passions, and achievements, the SBTs minted in Soul Society can be enhanced through ongoing user activities. These SBTs are called the Growth-Type SBTs, and they allow users to express their tastes and preferences in a more detailed and special way.