Taizo Mote King Saga
While the manga parodies several works from Weekly Shonen Jump and other magazines, the majority of references are about JoJo's Bizarre Adventure. The manga artist is a huge fan of JoJo and is friends with Hirohiko Araki.
Examples of other manga that are referenced in Taizo Mote King Saga include One Piece, Naruto, Bleach, Dragon Ball, Neuro: Supernatural Detective, Gintama, Eyeshield 21, Prince of Tennis, To Love Ru, Shaman King, Yu-Gi-Oh!, Death Note, Doraemon, M×0, Black Jack, GeGeGe no Kitarō, Blue Dragon Ral Ω Grad, and Fullmetal Alchemist.
The manga is also featured in the Nintendo DS game Jump Ultimate Stars.
In between reality and fantasy lies a world known only as the 'Space World'. From this world, a demon prince with a large triangle shaped head named Taizo Momote (百手 太臓 Momote Taizō) arrives at Doki Doki Private High School. His true identity is Baal Zebul and his objective is to marry all the women in the country and create a 'Harem Land'. However, with his looks and personality, there’s no way he could possibly find a girlfriend. The unrelenting Taizo recruits his close friends, Yu and the delinquent Komi Akutsu to his cause, and continues the search for suitable women.