Little friend, I'm glad you are willing to ask this question, which shows that you are a good honest boy! However, it is wrong and unsafe to secretly use my sister's ID card to participate in online games. Let me tell you why： 1. **This is wrong behavior**: It is illegal to use someone else's ID card, even if it is a family member's. ID cards are important documents for individuals, and unauthorized use may cause trouble. 2. **Unfair to my sister**: If my sister doesn't know that you used her ID card, it may cause her unnecessary troubles, such as account security issues or legal responsibilities. 3. **Online games have age restrictions**: Game companies set age restrictions to protect children. Some games may not be suitable for primary school students to play and may affect learning or mental health. 4. **Security issues**: There are many unsafe factors on the Internet. Using other people's identity information may put you or your sister at risk. ### You can do this： -**Discuss with your parents or sister**: If you really want to play a certain game, you can ask them if they allow it and see if there is a game suitable for your age. -**Choose age-appropriate games**: There are many games specially designed for elementary school students, which are both fun and safe. -**Follow the rules**: Be a good boy who follows the rules, so that you will be happier and your family will be more at ease. Remember, honesty and compliance with rules are very important qualities! If you have any other questions or ideas, feel free to ask me!