Today, is my favorite Japanese co-worker's last day in the US. Tomorrow he will be returning to Japan to continue his work there.

I am very sad to see him go. I have learned a lot from him over the last 7 years. I am hopeful that someday he will return to the US. I also hope to someday go to Japan, and he has let me know that he would love to guide me around.

Sayonara Masateru! You will be missed.