An inspection kit, comprising: a reagent device in accordance with the immunochromatography method, said reagent device having a sample-dripping part, the reagent device being capable of making a sample dripped on the sample-dripping part flow in a first direction from an upstream side toward a downstream side; and a case (110, 120) surrounding the reagent device, characterized in that: a liquid-absorbing part (111, 121) is provided with a portion near the sample-dripping part of the reagent device, the liquid-absorbing part (111, 121) guiding, according to capillary action, a remainder of the sample in a second direction differing from the first direction; the case (110, 120) includes: an upper case surrounding an upper part of the reagent device; and a lower case surrounding a lower part of the reagent device; and the case (110, 120) further includes an intermediate plate located between the upper case and the lower case; and the intermediate plate includes: a first sensitizer pot storing first sensitizer containing a reducing agent therein; and a second sensitizer pot storing second sensitizer containing silver ion liquid therein. a reagent device in accordance with the immunochromatography method, said reagent device having a sample-dripping part, the reagent device being capable of making a sample dripped on the sample-dripping part flow in a first direction from an upstream side toward a downstream side; and a case (110, 120) surrounding the reagent device, characterized in that: a liquid-absorbing part (111, 121) is provided with a portion near the sample-dripping part of the reagent device, the liquid-absorbing part (111, 121) guiding, according to capillary action, a remainder of the sample in a second direction differing from the first direction; the case (110, 120) includes: an upper case surrounding an upper part of the reagent device; and a lower case surrounding a lower part of the reagent device; and the case (110, 120) further includes an intermediate plate located between the upper case and the lower case; and the intermediate plate includes: a first sensitizer pot storing first sensitizer containing a reducing agent therein; and a second sensitizer pot storing second sensitizer containing silver ion liquid therein. a liquid-absorbing part (111, 121) is provided with a portion near the sample-dripping part of the reagent device, the liquid-absorbing part (111, 121) guiding, according to capillary action, a remainder of the sample in a second direction differing from the first direction; the case (110, 120) includes: an upper case surrounding an upper part of the reagent device; and a lower case surrounding a lower part of the reagent device; and the case (110, 120) further includes an intermediate plate located between the upper case and the lower case; and the intermediate plate includes: a first sensitizer pot storing first sensitizer containing a reducing agent therein; and a second sensitizer pot storing second sensitizer containing silver ion liquid therein. an upper case surrounding an upper part of the reagent device; and a lower case surrounding a lower part of the reagent device; and the case (110, 120) further includes an intermediate plate located between the upper case and the lower case; and the intermediate plate includes: a first sensitizer pot storing first sensitizer containing a reducing agent therein; and a second sensitizer pot storing second sensitizer containing silver ion liquid therein. a first sensitizer pot storing first sensitizer containing a reducing agent therein; and a second sensitizer pot storing second sensitizer containing silver ion liquid therein.