In Shoujo City 3D, players engage in various activities such as attending school, building relationships with characters, and customizing their avatars. Completing tasks and forming friendships enhance the gameplay experience.

To customize your character, access the customization menu in the main interface. You can change outfits, hairstyles, and accessories, allowing for a personalized avatar that reflects your style.

Improving relationships involves interacting with other characters regularly. Players should engage in conversations, participate in events, and complete quests related to characters to increase friendship levels.

Earning money in Shoujo City 3D can be done through various activities. You can participate in mini-games, complete tasks, or explore the city to find opportunities that reward you with in-game currency.

To unlock additional gameplay features, players should follow these steps: 1. Progress through the main story quests. 2. Complete side missions and tasks. 3. Interact with various characters to discover hidden opportunities. 4. Reach certain friendship levels with key characters to gain access to new features.