Secret Star
Hiroyuki Oka![Hiroyuki Oka](data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20210%20140%22%3E%3C/svg%3E)
It was created as an Christmas Present of 2005. It was designed as an image of Christmas. The base is a triangle Secret Box. You can slide the side plate, and it takes 5 moves to open. On the way to open, one plate goes forward and back. It is a traditional motion that is used for 4 step Secret Box. It became a Beautiful box with Yosegi. It was more difficult thanstandard square Secret Boxes.