A drawer comprising: a drawer frame extending in a lengthwise direction and having a plurality of spaces; a storage unit accommodating one type of clothes treatment agent therein, and seated in an outer space of the spaces of the drawer frame; and a clothes treatment agent housing accommodating another type of clothes treatment agent therein and detachably accommodated in an inner space of the space of the drawer frame, wherein the clothes treatment agent stored in the storage unit is in a liquid phase, and wherein the clothes treatment agent introduced into the clothes treatment agent housing is in a liquid or powder state. wherein the drawer frame comprises: a housing accommodation part defined as the inner space separated from the outer space and provided to insert the clothes treatment agent housing; and a plurality of protruding portions that protrude from the housing accommodation part and separate the housing accommodation part from the clothes treatment agent housing, and wherein a space portion is defined between a surface having the protruding portions provided thereon and the clothes treatment agent housing, wherein the another type of clothes treatment agent overflowed from the clothes treatment agent housing is introduced into the space portion, wherein the outer space of the spaces of the drawer frame where the storage unit is seated surrounds the housing accommodation part, such that the storage unit inserted in the outer space of the spaces surrounds the housing accommodation part, a drawer frame extending in a lengthwise direction and having a plurality of spaces; a storage unit accommodating one type of clothes treatment agent therein, and seated in an outer space of the spaces of the drawer frame; and a clothes treatment agent housing accommodating another type of clothes treatment agent therein and detachably accommodated in an inner space of the space of the drawer frame, wherein the clothes treatment agent stored in the storage unit is in a liquid phase, and wherein the clothes treatment agent introduced into the clothes treatment agent housing is in a liquid or powder state. wherein the drawer frame comprises: a housing accommodation part defined as the inner space separated from the outer space and provided to insert the clothes treatment agent housing; and a plurality of protruding portions that protrude from the housing accommodation part and separate the housing accommodation part from the clothes treatment agent housing, and a housing accommodation part defined as the inner space separated from the outer space and provided to insert the clothes treatment agent housing; and a plurality of protruding portions that protrude from the housing accommodation part and separate the housing accommodation part from the clothes treatment agent housing, and wherein a space portion is defined between a surface having the protruding portions provided thereon and the clothes treatment agent housing, wherein the another type of clothes treatment agent overflowed from the clothes treatment agent housing is introduced into the space portion, wherein the outer space of the spaces of the drawer frame where the storage unit is seated surrounds the housing accommodation part, such that the storage unit inserted in the outer space of the spaces surrounds the housing accommodation part,