
when i saw, "Rosetta Stone", i was like, what kinda powerful magic stone could dis be! i- i need to know about it! Σ(  ̄□ ̄||) (...2 second later) (⊙_'⊙ ) *disappointed*

A Babelfish works better anyway ... http://www.goodreads.com/quotes/1187961-the-babel-fish-is-small-yellow-and-leech-like-and-probably

(⊙_⊙ )? i didn't understand... what exactly happened with the teacher business?

He probably planted the pictures he took of the naked Kokoragi into the teacher's office. Then he pretends to find out about it and blackmail the teacher. Since Kokoragi is on Yuuichi's side, she will testify that the teacher molested her (even though he didn't). So now it's the evidence + her words against the teacher, so he has no choice but to follow Yuuichi's demand.
wait... was she set up?!!! please tell me that's the case!!! ε=ε=(ノ≧∇≦)ノ
Next chapter will show you how smart this kiddo is
ε=ε=(ノ≧∇≦)ノ
**SPOILER ALERT**
He calls his father/brother/friend(I don't know who he is) and the conversation with the mother is recorded. This guy comes and shows her she is guilty and is dragged by policemen and some kind of explanation of MC's plan is done. That's just next chapter. I can't see the next one until tomorow and it's just the raws...(〜 ̄△ ̄)〜