As for the robe- I'm fuzzy on this, but I believe traditional Japanese dress was borrowed from China- Tang dynasty or Sung and I can never remember which, but Song seems the more likely. There's this (http://www.stylishcn.com/Chinese-ancient-costume-of-Tang-dynasty-style-and-wedding-man-m-p-176.html) image which seems to be the kind of robe Goujun's wearing. They call it Tang but it doesn't resemble the other images I've seen of Tang clothing.

As for Kaiei- how true it is that what's normal behaviour in our culture looks pathological in someone else's, and vice versa. Even I, product of mid-20th century Catholicism, don't think subsuming one's feelings in duty is sociopathic or unhealthy. I mean, that's what civilization is all about- repressing selfish urges for higher goals or the greater good, or just because it's somehow 'right' to do so.

Confucianism screws with my head a little, for the extent to which it's prepared to go: but a belief that it's right that your father have absolute power over his family is fundamentally no more irrational than a belief that it's right for the government to have absolute power over chunks of your hard-earned money, which they take and use as they please whether you agree with their policies or not.