A short demonic 200 year old child who is the son of the Dark Devil Lord.

Compilations containing many of Toriyama's one-shots. 

Volume 1 (1983) 
- Wonder Island (1978-1979) 
- Tomato the Cutesy Gumshoe (1979) 
- Pola & Roid (1981) 
- Mad Matic (1982) 
- Chobit (1983) 

Volume 2 (1988) 
- Today's Highlight Island (1979) 
- Escape (1982) 
- Pink (1982) 
- Dragon Boy (1983) 
- The Adventure of Tongpoo (1983) 
- Mr. Ho (1986) 
- Young Master Ken'nosuke (1987) 
- The Elder (1988) 

Volume 3 (1997) 
- Little Mamejiro (1988) 
- Karamaru and the Perfect Day (1989) 
- Soldier of Savings Cashman (1990) 
- Dub & Peter 1 (1992-1993) 
- Go! Go! Ackman (1993)

Go! Go! Ackman is the story about a 200 year old demon child named Ackman who harvests souls for the Dark Devil Lord.
 
Note: First released to public at 1994 V-Jump Festa, later it became a special video feature to be requested by V-Jump purchasers.
 
(Source: Anime News Network, edited)

[Official Profile](https://www.aoni.co.jp/search/urawa-megumi.html)

A 200-year-old demon child named Ackman wakes up after a fifty-year nap. His parents explain that they have the mission to kill people and sell their souls to the Dark Lord for money. After his sister Medusa gives him more modern clothes and a sword to replace his trident, Ackman begins to kill people while his faithful Goldon, a red bat-winged creature, gathers the souls in a jar.
 
(Source: Dragon Ball Wiki)