冨樫義博
The October 2012 issue of "Ultra Jump" contained a special booklet titled "25 Years With JoJo" that also celebrated the anniversary; it featured messages and tribute art from well-known manga artists such as Akira Toriyama, Yoshihiro Togashi, Eiichiro Oda, Clamp, and 18 others. During the 25th anniversary celebrations, a special smartphone with a "JoJo's Bizarre Adventure-"inspired UI was released.