Hi @Butcher! I don’t think I’ve seen you around the forum before! Are you new? If you are, why don’t you head over and introduce yourself to the rest of the forum! We’re friendly, I promise! 
And to answer your question, yes! But like @AMF said, the mystery can quite complicated, so just keep reading and thinking! If you check out our other Umineko spoiler free topics you can see all of our theories, as well as telling us your own! Solving Umineko’s mysteries are a lot easier when you have others to help talk and theorize with!
Best of luck solving the mystery!