Trip Of Mel
"Mel no Tabidachi/Trip of Mel" is Yoshihiros "mini-manga" that is contained in Yoshihiros "collection" manga: Ginga Densetsu: Weed Gaiden (Another Story Of Weed), that contains 5 short storyes.
From the last page of Trip Of Mel that shows us Mel and Louis.
The translation is made by KumaNAL, so the manga is not in english and it can't be ordered in Europe.
Thanks to silverfang.cjb.net for this material.