According to Canned Dogs, a short story featuring a character from Jigoku Sensei Nube (that’s “Hell Teacher Nube,” which has a 1996 TV anime and a 1998 OVA to its name) by original creators Shou Makura (writer) and Takeshi Okano (artist) was published in Oh SUPER JUMP.

The interesting part about that is the fact that the manga ended eight years ago, and Makura and Okano went their separate ways allegedly due to some arguments. “Creative differences,” perhaps.