From school Waseda University
It's a video for people who want to learn Japanese well, and its made by a very famous school in Japan : Waseda University.
Very different from any textbook, it's about how to speak correctly in Japanese. Different pitch at the first or at the end can result in very different meaning. We can also learn grammar at the same time because every time it gives an example, we get the meaning, so we can trace back to the original sentence to see how the grammar is used.