Blake, originally called Black Sonichu (and occasionally Blachu; born 22 March 1999, is a Sonichu, and was once the arch-nemesis of Sonichu. He is also, inexplicably, Bubbles Rosechu's boyfriend (and later husband outside of the comic canon, with whom he has a child). However, for some reason, Blake and Bubbles decided to hide it from all of their friends, not knowing that their friends already knew about the relationship. He rips off three characters: Shadow the Hedgehog, Pikachu and Mewtwo.
Despite effectively being yet another recolor of Sonichu, Blake is not part of the Chaotic Combo due to being a clone of Sonichu Prime. He does heavily associate with him after he stops being a villain, in spite of this.
17 March - Chris marks Sonichu Day but tells his audience that he considers it the day he discovered Sonichu, and that the birthday is 20 April (a retconned belief he has held since the Idea Guys).
Check out the Official CWCki Server Discord, and the section about Chris at the CWCki Club forums, and the Chris Chan subreddit, full of lively and often times thoughtful discussions on Chris and Sonichu. (Use the wiki talk pages or the CWCki-related channels in the Discord for article-related discussions).