It was the day before final presentation. Everyone stayed focusing on their projects aiming to deliver to their customers the best outputs. All teams worked very hard. Professors walked in and out the meeting rooms all day to give advices and confirm that all team were on the right tracks. Interestingly, all team started their works at 9 AM and ended around the same time at 2 AM of the next day. It was exceptional experience of midnight work at KAIST. And it became more special when one or two of us experienced some mysterious experience during midnight (... may be another joke).