Exploratory testing is an effective testing approach for the system-level testing from the end user’s perspective, which is widely practiced and appreciated in the software industry. Although many concrete principles and guidelines for performing exploratory testing have been proposed, there are no effective tools for automatic generation of exploratory test scenarios (a.k.a soap opera tests). In this paper, we propose a tool named SoapOperaTG for automatic soap opera test generation by leveraging the scenario and oracle knowledge in bug reports. We first construct a system knowledge graph (KG) of user tasks and failures from the preconditions, steps to reproduce (S2Rs), expected behavior (EB) and observed behavior (OB) in bug reports. Then, we create soap opera tests by combining the scenarios of relevant bugs based on the system knowledge graph. SoapOperaTG is implemented as a web tool to present the generated test scenarios. In our user study, 5 users find 18 bugs in Mozilla Firefox (a mature, well-maintained software system) in 2 hours using SoapOperaTG, while the control group finds only 5 bugs based on the recommended similar bugs. SoapOperaTG can be found at https://github.com/SuYanqi/SYS-KG. Demo video can be found at https://youtu.be/xcXmY8qGDSc.