It's something one wouldn't want to admit. A mistake due to one's redness. This is a play on the usual saying 若さゆえのあやまち, meaning 'a mistake due to one's youth'. There is a blog with these two lines, although I don't know if this image has anything to do with that blog.

It's something one wouldn't want to admit. A mistake due to one's redness. This is a play on the usual saying 若さゆえのあやまち, meaning 'a mistake due to one's youth'. There is a blog with these two lines, although I don't know if this image has anything to do with that blog.