If Humphrey goes to Japan for his vacation, will he suddenly come across with gin, gini and Weed when he was hiking at the Japanese Alps?

Note:
gin, gini and Weed are from Ginga: Nagareboshi gin, gini and Ginga Densetsu Weed.
Plus:
Will they be Humphrey's new friends? And will he introduce Gin, Weed and the rest of the characters from the onyesha to Jasper Natinal Park?
That's all, folks!