Tsubaki Seigi

Tsubaki Seigi (椿正義) is a group of Japanese Virtual YouTubers. Its members are Tsubaki Takayuki (椿隆之) and Masayoshi Atsuki (熱木正義). Atsuki wants to be a hero and, as such, has become a disciple of the legendary Tsubaki Takayuki.

Personality
Atsuki always speaks in a tone that makes him appear fired up, even when talking about the most minute things. This leads to him often carrying the overall energy of their videos. On the other end of this spectrum is Takayuki who, while certainly not being soft-spoken, is often beat out by Atsuki's lively tone. The two have a strong sense of Manzai (漫才) comedy; Takayuki will often say or do things that are strange or clearly mistaken, and Atsuki will be there to quickly correct or even scold him. This leads to a rather distinct separation between their perceived master-student relationship and the reality of their dynamic.

Trivia

 * Prior to the reveal of his 2D model on Jul 19, 2019, Tsubaki Takayuki was a non-virtual member of Tsubaki Seigi. He is a Japanese actor, having played characters such as Kenzaki Kazuma, the titular protagonist of Kamen Rider Blade.
 * Due to Takayuki's connections to the Kamen Rider franchise, the channel appears to have special rights to some intellectual properties, like the rights to review toys from the series and use rather explicit references to the series in their characters and abilities.
 * Tsubaki Seigi has an anime-like storyline with the same name that is posted to their channel along with their streams. In this series, they fight evil using items similar to the Rider Cards and Flash Belts seen in Kamen Rider Blade.