Hunter x Hunter - Hisoka Origin Story

"Hisoka's Past" is a prequel oneshot of Hunter × Hunter focusing on the character Hisoka written and illustrated by Sui Ishida.

The project was originally an April fools hoax announcement posted by Sui Ishida on his twitter back in 2015 before being released on the Shonen Jump + website on June 2nd, 2016.
The release was accompanied by an interview between Sui Ishida and Yoshihiro Togashi.