(The only effect lecture that delves deep into Niagara in Korea and abroad) This lecture accurately understands the roles of particles and emitters and allows you to customize parameters and modules accordingly to learn how they interact. I don't think I've seen any other lectures in Korea or abroad that allow you to study Niagara this deeply. It's very difficult for test takers, but I recommend it to those with experience. It was a bit disappointing that there were some parts where voices overlapped or content disappeared in the middle of the lecture, but there was no major problem in following along. Please make more informative lectures, thank you. :)