For example, "Sakura" is la la si la la si la si do si la si la fa mi do mi fa mi do si without re and so. This scale is explained from a music professional's perspective and has some particularities, which I don't quite understand. You can simply take a look at it. It is equivalent to a 7-note scale without re and so. All the semitone relationships between si do and mi fa are retained, and the fourth is also added between fa and si, etc. These characteristics cause music written in this scale to sound colder, even uneasy. The pentatonic scale do re mi so la do is much more stable than this. There is no relationship between semitones and augmented fourths, so many traditional Chinese music does not have the same feeling as Japanese music. Most of the above is nonsense. In short, the core is that its scale makes you sound strange and sad. If you go into the movie and ask why this scale makes people feel wrong, then it is a human physiological problem.