X Made Mikuru Cry! refers to a series of parody videos utilizing chibi Mikuru weeping which is taken from a short-anime series for The Melancholy of Haruhi-chan, a spin-off gag manga of The Melancholy of Haruhi Suzumiya.
The Melancholy of Haruhi-chan, the anime series depicting the SOS Brigade in a cute way, had been released on the official YouTube channel of the publisher Kadokawa from February to May of 2009. In the 12th episode released on March 20th, 2009. Kyon and Itsuki must surprise the girl's of the brigade, and resort to acting like hosts (shown below, left). The YouTube user ShadowRocksMySock parodied this "piiii" noise by using something the internet hates, Twilight (shown below, right). The video, entitled "Twilight Makes Mikuru Cry," was originally uploaded to YouTube around June 2009.
That video has a small view count. But some of Haruhi fanatics thought this was hilarious, and a few created their own versions, included other topics that make people uneasy, such as Darth Vader, Hetalia, television, and of course, Endless Eight. Many parodies include other anime, or memes.
Left: Darth Vader’s Nooooooo | Right: Justin Bieber
Left: Hetalia | Right: Endless Eight
Left: Sonic the Headghog | Right: Everything