なかみ中身nakamiなかみ中味nakami
1.
The items or materials contained within a container, highlighting their physical presence and organization inside the outer structure.
2.
The intrinsic value or essence of something, focusing on its meaningful or substantial aspects rather than its outward appearance.
3.
The section of a sword that refers to the blade itself, denoting the functional component used in cutting or combat.
Example:
財布の中身をこの袋に空けなさい。