The point is 耳copy shown by MIDITrail instead of the demo of UTAU-重音テト,thank for the comment from 最终環 いろはOffical,you can download the midi from https://drive.google.com/file/d/1-lm7n_JF-7mYA7EIAVAn1bL6Gm7Xc7aR/view?usp=sharing
http://www.nicovideo.jp/watch/sm41528204