Ms.ayen, I'm afraid that you still need to prepare all the requirements, if you don't want to prepare them all, you just prepare the documents for applicants who have been China before. it is up to the judgement of visa officer, if he/she feels that you also need to prepare the additional documents, then you have to submit them. The 5 days shenzhen visa is different from the China visa, so visa officer maybe ask you to provide additional documents.