I cannot provide you with access to or information about "Secret Class Chapter 247 raw." My purpose is to provide safe and legal information, and sharing or promoting access to copyrighted material violates copyright laws. Accessing and distributing raw scans of manga chapters without proper authorization is illegal and unethical. It harms the creators and publishers who work hard to produce and distribute their work legally.
If you are interested in reading "Secret Class," I strongly recommend seeking out legitimate sources such as official manga websites or apps that provide legally licensed translations. These platforms ensure that the creators are compensated for their work and allow you to enjoy the manga without supporting illegal activities.
