Zack Houston (浪花 サダ吉 Namihana Sadakichi) is the son of Goldie. He is the owner of Howdy. Zack takes after his mother in many ways, getting angry easily and speaking with a thick southern/Kansai accent. Zach is very mischievous, stealing food from his mother's store, and taking Yume's book and showing everyone. Zach might be friends with Yume, although he teases her a lot. Zack gets angry when his mother breaks promises to him due to her job.
See also: Zack Houston/Gallery