Sometimes, we can remember our memories by traces. I believe that we can come back to the past for a moment through these traces. This clock's basic function is not only to tell the time but also so the user can make a note on the face of the clock, which is made of laminated white board. Also, a hand of the clock erase the written messages automatically by using the eraser which is behind the hand. The analog clock shows remaining time to the appointed time more intuitively compared to a digital clock. That is one of the reason why the analog clock exists until today although the digital clock advents.