A light-emitting system comprising: a light-transmitting partition member that partitions a first space and a second space; and a light-emitting illumination device, wherein the light-emitting illumination device comprises: a substrate comprising a first surface and a second surface opposite to the first surface; a plurality of light-emitting units located on the second surface of the substrate and extending linearly, wherein the light emitting units include, in order from a first space side, a light-transmitting first electrode, an organic layer including a light emitting layer, and a second electrode; an insulating layer wherein said insulating layer defines the plurality of light-emitting units and covers an edge of the first electrode, whereby at least a portion of the insulating layer is not covered by the second electrode; and a plurality of transmissive portions located on the substrate, each of the plurality of transmissive portions being located between adjacent light-emitting units and not including the insulating layer and the second electrode; and wherein an intensity of emission into a region on the second surface side is equal to or greater than 0% and equal to or less than 10% with respect to an intensity of an emission into a region on the first surface side, wherein the light-emitting illumination device is disposed on the partition member such that the first surface is at the first space side, wherein the second electrode has light shielding properties, a light-transmitting material is used for the substrate, and the first electrode and the second electrode are at least partially overlapped. a light-transmitting partition member that partitions a first space and a second space; and a light-emitting illumination device, wherein the light-emitting illumination device comprises: a substrate comprising a first surface and a second surface opposite to the first surface; a plurality of light-emitting units located on the second surface of the substrate and extending linearly, wherein the light emitting units include, in order from a first space side, a light-transmitting first electrode, an organic layer including a light emitting layer, and a second electrode; an insulating layer wherein said insulating layer defines the plurality of light-emitting units and covers an edge of the first electrode, whereby at least a portion of the insulating layer is not covered by the second electrode; and a plurality of transmissive portions located on the substrate, each of the plurality of transmissive portions being located between adjacent light-emitting units and not including the insulating layer and the second electrode; and wherein an intensity of emission into a region on the second surface side is equal to or greater than 0% and equal to or less than 10% with respect to an intensity of an emission into a region on the first surface side, wherein the light-emitting illumination device is disposed on the partition member such that the first surface is at the first space side, wherein the second electrode has light shielding properties, a light-transmitting material is used for the substrate, and the first electrode and the second electrode are at least partially overlapped.