Sonic.exe: the animated series

Sonic.exe: The Animated Series (Sonic.exeの初め Sonic.exe's beginning) is a Japanese animation produced by TMS Entertainment (previously known for creating Sonic X). it was released in Japan in July 24, 2018 and is said to release in America in Janurary 2019.
The series tell the origins and story of famous creepypasta Sonic.exe, who is the leader of an evil army called The Cult of X. Despite being a bad guy, he has a soft spot for his child Classic Sonic.exe (aka "Little One) and his crush Sonic.