A Nijisanji virtual Youtuber, part of the second wave and designed by Hoojiro.
See post #3547321.
As Kenmochi Touya, he is portrayed with purple hair and green eyes. He also has a genderbent version named Kenmochi Touko, see the page for details.
A kendou club member with a pointy chin that's often the focus of jokes. He is also a self-proclaimed lolicon.