2DS entities, aka double dimensionally sutured entities are a type of non-physical entity. It manifests in your prefrontal cortex. It will either manifest itself as a voice, or a text. Initially weak, it can grow depending if you acknowledge its presence. Naturally, most peolle would be afraid and concerned about that little voice or the random letters, which would only help it manifest itself stronger. In the case that it becomes far too powerful, it can manifest itself physically and eventually kill you before choosing another host. Be aware.
