Where do entangled multiple-qubit systems store information? For information
injected into a qubit, this question is nontrivial and interesting since the
entanglement delocalizes the information. So far, a common picture is that of a
qubit and its purification partner sharing the information quantum
mechanically. Here, we introduce a new picture of a single qubit in the
correlation space, referred to as quantum information capsule (QIC), confining
the information perfectly. This picture is applicable for the entangled
multiple-qubit system in an arbitrary state. Unlike the partner picture, in the
QIC picture, by swapping the single-body state, leaving other subsystems
untouched, the whole information can be retrieved out of the system. After the
swapping process, no information remains in the system.