As we've been discovering, Japan is a shame-based society. The implications of that, compared with guilt-based countries in the West, is the recipe for fruitful evangelism must be carefully kneaded before consumption.
Since the 1940s, anthropologists have distinguished between shame-cultures and guilt-cultures. People who belong to the latter suffer from an inner sense that they have transgressed some immutable law, and the hiddenness of that transgression can intensify the pain: thus the feeling of relief that can accompany confession in such cultures. But in shame-cultures, exposure is the great evil: not to transgress, but to have one’s transgressions revealed.
Luke 13:6-7 "A man had a fig tree, planted in his vineyard, and he went to look for fruit on it, but did not find any. So he said to the man who took care of the vineyard, 'For three years now I've been coming to look for fruit on this fig tree and haven't found any. Cut it down! Why should it use up the soil?'"