A resin film comprising a multi-layered particle comprising a layer (a) made of a polymer consisting of 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of an alkyl acrylate unit, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.8% by mass of other copolymerizable monomer units, and a layer (c) made of a polymer comprising 80 to 100% by mass of a methyl methacrylate unit and 0 to 20% by mass of other copolymerizable monomer units, wherein an amount of the layer (a) is 5 to 15 parts by mass, an amount of the layer (b) is 40 to 60 parts by mass and an amount of the layer (c) is 35 to 50 parts by mass, based on 100 parts by mass of the total amount of the layer (a), the layer (b) and the layer (c), and the layer (a), the layer (b) and the layer (c) are arranged in this order from the center of the particle toward the outer surface of the particle, and a volume-based average particle diameter of the multi-layered particle is 90 to 150 nm; and a resin. a multi-layered particle comprising a layer (a) made of a polymer consisting of 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of an alkyl acrylate unit, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.8% by mass of other copolymerizable monomer units, and a layer (c) made of a polymer comprising 80 to 100% by mass of a methyl methacrylate unit and 0 to 20% by mass of other copolymerizable monomer units, wherein an amount of the layer (a) is 5 to 15 parts by mass, an amount of the layer (b) is 40 to 60 parts by mass and an amount of the layer (c) is 35 to 50 parts by mass, based on 100 parts by mass of the total amount of the layer (a), the layer (b) and the layer (c), and the layer (a), the layer (b) and the layer (c) are arranged in this order from the center of the particle toward the outer surface of the particle, and a volume-based average particle diameter of the multi-layered particle is 90 to 150 nm; and a layer (a) made of a polymer consisting of 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of an alkyl acrylate unit, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.8% by mass of other copolymerizable monomer units, and a layer (c) made of a polymer comprising 80 to 100% by mass of a methyl methacrylate unit and 0 to 20% by mass of other copolymerizable monomer units, wherein an amount of the layer (a) is 5 to 15 parts by mass, an amount of the layer (b) is 40 to 60 parts by mass and an amount of the layer (c) is 35 to 50 parts by mass, based on 100 parts by mass of the total amount of the layer (a), the layer (b) and the layer (c), and the layer (a), the layer (b) and the layer (c) are arranged in this order from the center of the particle toward the outer surface of the particle, and a volume-based average particle diameter of the multi-layered particle is 90 to 150 nm; and a resin.