There are considerable legal risks in operating in the gray area of intellectual property law, so it is crucial to ensure legality when trying to sell an adapted product. Here are some suggestions, but be sure to consult a professional intellectual property lawyer for specific guidance: 1. **Obtain appropriate licenses and authorizations**: Make sure you have the right to use and adapt the original work. This may involve negotiating a licensing agreement with the copyright holder. 2. **Understand the "fair use" principle**: In some cases, limited use may be considered "fair use", but this usually depends on the specific circumstances, such as the purpose, amount of use, and impact on the original work. 3. **Avoid substantial copying**: Make sure your adapted product is sufficiently original in creation and avoid large-scale copying of key elements of the original work. 4. **Indicate the source and give appropriate credit**: In some cases, properly indicating the original author and source can help reduce the risk of infringement, but this is not a complete substitute for permission. 5. **Conduct a comprehensive legal review**: Before the product is released, conduct an intellectual property review to identify potential infringement issues and take appropriate preventive measures. 6. **Keep records**: Save all relevant license agreements, communication records, and creative processes so that you can prove your legality when necessary. 7. **Monitor legal developments**: IP laws may change over time and with the development of specific cases, and it is very important to keep up to date with the relevant laws. **Important note**: The above suggestions are for reference only and cannot replace professional legal advice. Before engaging in any business activities that may involve IP, it is strongly recommended to consult a legal professional with relevant experience to ensure a comprehensive understanding of the relevant legal obligations and risks.