Manga
Selesai terbit
3 chapter
1 volume
Mars Gaiden: Namae no Nai Uma
Mars: A Horse with No Name · MARS外伝 名前のない馬
Sinopsis
1. Namae no Nai Uma (A Horse with No Name)
2. Nemuru Lion (Sleeping Lion)
3. 1 karat no Kajitsu
Latar belakang
Mars Gaiden: Namae no Nai Uma was published in English by Tokyopop as Mars: A Horse With No Name in July 13, 2004.