Board Thread:Questions and Answers/@comment-26505962-20160201141919/@comment-26819397-20160201143401

The hidden girl is the mysterious girl in the Student Council Room on the computer! When you walk into the room, the laptop will play, aka the special sequence. In January 1st, she wasn't hidden very well and could be easily seen under the fountain. In the January 2nd Update, she was moved to a more secretive location, but people still found her. Now she is moved to where it is now impossible to find her, except on the computer.