  This work introduces a new concept of Chinese-Magic-Box. The general idea is
to have a box such that the sender can store information in multiple drawers.
The receiver is free to open any drawer. However, once the receiver opens the
drawer, he can retrieve the information from that drawer only, that is, the
information that was stored in the other drawers is lost. This property is
achieved by storing the information using a set of non-orthogonal quantum
states. The different drawers are realized by different orthogonal set of basis
for the measurement. Once the measurement is performed, the information in this
basis is retrieved. At the same time, due to wave function collapse the
information in the other basis is lost and cannot be retrieved. I show how to
construct a set of states for a single qubit to implement a Box with two or
three drawers. Some applications are discussed. Among them is a new
non-symmetric Quantum Key Distribution with only single direction classical
communication.
