Toner

A toner comprising a toner particle comprising a binder resin, wherein

• the binder resin comprises a crystalline resin and an amorphous resin;
• the toner has a number-average particle diameter of 4.0 μm to 10.0 μm;
• the crystalline resin comprises a crystalline vinyl resin having a monomer unit (a) represented by a following formula (1);
• in differential scanning calorimetry (DSC) using the toner as a sample, a melting point peak derived from the crystalline vinyl resin is observed in a range of 50.0° C. to 80.0° C.;
• and
• when a cross-section of the toner is observed by using a scanning transmission electron microscope,
• (i) the cross-section of the toner particle has a phase separation structure comprising a crystalline phase comprising the crystalline resin as a main component and an amorphous phase comprising the amorphous resin as a main component, and
• a proportion of an area of the amorphous phase in the cross-section of the toner particle is at least 15.0% by area;
• and
• (ii) when a region from the toner particle surface to 500 nm inward of the toner particle is defined as region A, and a region other than the region A is defined as region B,
• a proportion of an area of the crystalline phase in the region A is at least 60.0% by area, and
• a proportion of the area of the amorphous phase in the region B is 1.5 times or more the proportion of the area of the amorphous phase in the region A:
• where, in formula (1), R1 represents a hydrogen atom or a methyl group, and n represents an integer 15 to 35.