Actor Takayuki Tsubaki who had played Kazuma Kenzaki / Kamen Rider Blade had announced that he is debuting as a VTuber on YouTube. I know you might know what VTuber is. So to brief, V in VTuber stands for Virtual and Tuber is taken from YouTuber as a Online Profession similar to it.
VTuber usually don't appear in their videos as the person but as a character whose action is controlled by the actor using motion capture. When it comes to voice, I have a image that they will be using voice modulation or sometimes their real voice as in the case of Takayuki Tsubaki.
The character Takayuki Tsubaki is going to play is a Hero named Atsuki Masayos. He has strong Justice. In episode 1, both Takayuki Tsubaki and Atsuki will appear. Atsuki is requesting Takayuki to teach him his Justice as he was once the Legendary Kamen Rider Blade. Yes, he was once. Don't forget the Zi-O Blade Arc where their fate just ended like that.