A toner comprising: toner base particles; and an external additive attached to surfaces of the toner base particles, wherein the toner base particles comprise a crystalline polyester resin and an ester wax, the ester wax is a condensation product of a first monomer group and a second monomer group, the first monomer group consisting of at least three or more types of carboxylic acids and the second monomer group consisting of at least two or more types of alcohols, the proportion of a carboxylic acid with a carbon number of C n , the content of which is highest in the first monomer group, is between 70 and 95 mass% with respect to 100 mass% of the first monomer group, the proportion of a carboxylic acid with a carbon number of 18 or less in the first monomer group is 5 mass% or less with respect to 100 mass% of the first monomer group, the proportion of an alcohol with a carbon number of C m , the content of which is highest in the second monomer group, is between 70 and 90 mass% with respect to 100 mass% of the second monomer group, the proportion of an alcohol with a carbon number of 18 or less in the second monomer group is 20 mass% or less with respect to 100 mass% of the second monomer group, the external additive comprises silica particles having a volume average primary particle diameter (D 50 ) of from 70 to 120 nm as measured with laser diffraction particle size distribution analyzer, the silica particles comprise primary particles of silica and secondary particles in which two or more primary particles of silica are joined together, and a joining degree calculated according to the following formula of the silica particles is 80% or more: joining degree % = n 2 / n 1 + n 2 × 100 wherein n 1 is the average number of the primary particles measured per one toner base particle, and n 2 is the average number of the secondary particles measured per one toner base particle, n 1 and n 2 being measured by image analysis of an electron micrograph. toner base particles; and an external additive attached to surfaces of the toner base particles, wherein the toner base particles comprise a crystalline polyester resin and an ester wax, the ester wax is a condensation product of a first monomer group and a second monomer group, the first monomer group consisting of at least three or more types of carboxylic acids and the second monomer group consisting of at least two or more types of alcohols, the proportion of a carboxylic acid with a carbon number of C n , the content of which is highest in the first monomer group, is between 70 and 95 mass% with respect to 100 mass% of the first monomer group, the proportion of a carboxylic acid with a carbon number of 18 or less in the first monomer group is 5 mass% or less with respect to 100 mass% of the first monomer group, the proportion of an alcohol with a carbon number of C m , the content of which is highest in the second monomer group, is between 70 and 90 mass% with respect to 100 mass% of the second monomer group, the proportion of an alcohol with a carbon number of 18 or less in the second monomer group is 20 mass% or less with respect to 100 mass% of the second monomer group, the external additive comprises silica particles having a volume average primary particle diameter (D 50 ) of from 70 to 120 nm as measured with laser diffraction particle size distribution analyzer, the silica particles comprise primary particles of silica and secondary particles in which two or more primary particles of silica are joined together, and a joining degree calculated according to the following formula of the silica particles is 80% or more: joining degree % = n 2 / n 1 + n 2 × 100 wherein n 1 is the average number of the primary particles measured per one toner base particle, and n 2 is the average number of the secondary particles measured per one toner base particle, n 1 and n 2 being measured by image analysis of an electron micrograph. <EOS>