Koni, Ana and the crazy school party

At Koni's school, the students are caught up in the fever of the party that will take place very soon, and everyone wants to make it as good as possible. Koni, Ana, Billy and Dina have to take care of the drinks and music, but Ana isn't very focused on this task. It seems that for her, the new computer and chatting online with others are more entertaining than her friends. And who is this Man from the Moon, so mysterious, who is keeping Ana captive?