Provided is a storage case which can be opened and closed by a main body and a cover, including: an electric power switch having function of an electric contact switch added to a locking unit between the body and the cover; a lamp which emits light and flickers by electric power supplied according to an on- or off-state of the electric power switch; a half mirror which operates as a mirror or a glass plate through change of light transmissivity; a general mirror located at the back of the storage case for reflectivity of light; and a light transfer medium positioned within a gap space between the half mirror and the general mirror, and controls a refractive index of light, to reveal a feeling of solidity. Through self-lighting in the storage case, values of jewels, cosmetics etc., contained in the storage case as well as the storage case can be heightened.