The ドラゴンハーフ (Dragon Half) manga was a 青年 (seinen) series by 見田 竜介 (Mita Ryuusuke) serialized from 1988 – 1994 in Dragon Magazine in Japan. It was highly RPG-based, with countless references to NES video games of the time including Super Mario Bros., The Legend of Zelda, Dragon Quest, and so on. As a seinen manga it contains many highly sexual situations, although it never ventures into the realm of all-out 変態 (hentai). The series was compiled into 7 単行本 (tankoubon), and also spawned a 2-episode anime OAV.
The manga employs a wide range of genres (Excel Saga is another series which follows the same format) and pokes fun primarily at Dungeons & Dragons-type settings. There is rampant use of super-deformed (SD’d) characters, as well as a wide range of zany events throughout.
Without ruining the story for anyone, this series follows the adventures (and misadventures) of a half-human, half-dragon daughter of a dragon and dragon slayer, named Mink. Mink is in love with her pop star and dragon slayer idol, Saucer Dick (Although introduced as “Dick Saucer,” his parents shared “Dick” as part of their name, as does his cousin Sonic, thus “Dick” is his surname). Because Saucer is a dragon slayer who hates all dragons, Mink is on a mission to obtain the magical Pido Potion which will turn her into a full human (so that Saucer will fall in love with her). She somehow manages to find herself hunted by King Siva, his magician Rosario, the half-slime/half-human Princess Vina, the captain of the guard Damaramu, and all manner of dragons and demons including the Demon Lord Azatodeth and his sons.
All in all, if you don’t mind the crazy “big hair” of the 80’s, scantily-clad girls and heavy sexual innuendo, and in particular if you are a fan of NES games and RPGs, this is certainly a series worth reading. And hey — the translation of the manga (linked above) is free.