For current and previous ALTs, is/was your current supervisor a Japanese woman or a Japanese man?

If there are more female supervisors than male supervisors, is there a reason behind that?

Of all the supervisors I had in the past as an ALT, all of them were Japanese women. Same with the staff at the dispatch companies. Except for HR who is usually a western white male in their 40s or so.

I've heard of one dispatch company that has a CEO who is half-Japanese in their 20s.