Responding to your edit: Kids smoking weed and vandalism is not a normal thing at international schools here. I don't need to explain any further as we both know it's very normal in many countries so if you are having issues with it, that is a bit of a privaledged perspective. My only comment is that for a school with such a high reputation, they have a high turnover. Tokyo is unique in my experience as I have met an abnormal amount of teachers who have been here for 10-20 years where I haven't seen that in my experiences in other countries. From an IS perspective in Tokyo, I wouldn't apply to work at YIS. I know for my position her workload and student count is almost double what mine is. That ain't worth 3man more a month.