Otto's middle school days

Middle school in Nether is just 2 years. Nothing exciting. I happened to be in the same class as Matrix during those 2 years so I mostly hung out with him. I also hung out with a bunch of different guys. And had a girlfriend once, but she wasn't my type. It was a one sided love for her that I gave chance to. 

We don't really give that much importance to middle school since it's just 2 years. There's still 2 years of Junior high school and 2 years of Senior high school.

Eden Middle school is not that big and yet I have not seen Sahara or London. Where were they hiding?