A thermoplastic resin comprising: a constituent unit (a) that is derived from a (meth)acrylate monomer and represented by the following formula: wherein, in the formula, R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrocarbon group having 1 to 18 carbon atoms and optionally having a hydroxyl group or an alkoxy group, and when a plurality of the constituent units (a) are present, a plurality of R1s and a plurality of R2s are the same or different; a constituent unit (b) that is derived from a vinyl monomer and represented by the following formula: wherein, in the formula, R3 represents a phenyl group, a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each of which optionally has at least one substituent selected from the group consisting of a hydrocarbon group having 1 to 4 carbon atoms, a hydroxyl group, an alkoxy group, and a halogen atom, and when a plurality of the constituent units (b) are present, a plurality of R3s are the same or different; and a constituent unit (c) that is derived from a vinyl monomer and represented by the following formula: wherein, in the formula, R4 represents a phenyl group, a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each of which optionally has a hydrocarbon group having 1 to 4 carbon atoms, and when a plurality of the constituent units (c) are present, a plurality of R4s are the same or different, wherein the proportion of the sum of the number of R3s which are a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each optionally having the substituent, and the number of R4s which are a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each optionally having the hydrocarbon group, to the total number of all R3s and R4s present in the all constituent units of the thermoplastic resin is 70% or more, and the weight percentage of the constituent unit (a), total weight of the all constituent units, is 60 to 85% by weight, the weight percentage of the constituent unit (b), based on the total weight of the all constituent units, is 5 to 30% by weight, and the weight percentage of the constituent unit (c), based on the total weight of the all constituent units, is 5 to 15% by weight. wherein, in the formula, R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrocarbon group having 1 to 18 carbon atoms and optionally having a hydroxyl group or an alkoxy group, and when a plurality of the constituent units (a) are present, a plurality of R1s and a plurality of R2s are the same or different; a constituent unit (b) that is derived from a vinyl monomer and represented by the following formula: wherein, in the formula, R3 represents a phenyl group, a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each of which optionally has at least one substituent selected from the group consisting of a hydrocarbon group having 1 to 4 carbon atoms, a hydroxyl group, an alkoxy group, and a halogen atom, and when a plurality of the constituent units (b) are present, a plurality of R3s are the same or different; and a constituent unit (c) that is derived from a vinyl monomer and represented by the following formula: wherein, in the formula, R4 represents a phenyl group, a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each of which optionally has a hydrocarbon group having 1 to 4 carbon atoms, and when a plurality of the constituent units (c) are present, a plurality of R4s are the same or different, wherein the proportion of the sum of the number of R3s which are a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each optionally having the substituent, and the number of R4s which are a cyclohexadienyl group, a cyclohexenyl group, or a cyclohexyl group, each optionally having the hydrocarbon group, to the total number of all R3s and R4s present in the all constituent units of the thermoplastic resin is 70% or more, and the weight percentage of the constituent unit (a), total weight of the all constituent units, is 60 to 85% by weight, the weight percentage of the constituent unit (b), based on the total weight of the all constituent units, is 5 to 30% by weight, and the weight percentage of the constituent unit (c), based on the total weight of the all constituent units, is 5 to 15% by weight.