A negative photosensitive composition comprising: an epoxy group-containing resin (A); and a cationic polymerization initiator (B) which comprises at least one cationic polymerization initiator (B0) selected from the group consisting of compounds represented by general formula (b0-1) and compounds represented by general formula (b0-2), and a cationic polymerization initiator (B1) which generates an acid having a pKa of -3 or more, wherein the cationic polymerization initiator (B1) comprises at least one compound selected from the group consisting of compounds represented by general formula (b1-1') and compounds represented by general formula (bl-2'): wherein R b01 to R b04 are each independently a fluorine atom or an aryl group which may have a substituent, R b05 is a fluorine atom or a fluorinated alkyl group which may have a substituent, plural R b05 's may be the same as or different from each other, q is an integer of 1 or more, and Q q+ 's are each independently a q-valent organic cation; and wherein R b11 and R b12 each are a cyclic group which may have a substituent other than a halogen atom, a chain alkyl group which may have a substituent other than a halogen atom, or a chain alkenyl group which may have a substituent other than a halogen atom, R 201 to R 203 each independently represent an aryl group which may have a substituent, a heteroaryl group, an alkyl group, or an alkenyl group, and R 201 to R 203 , may be bonded to each other to form a ring with the sulfur atom in the formula, provided that at least one of R 201 , R 202 , and R 203 is an organic group having 16 or more carbon atoms, and wherein a ratio between the cationic polymerization initiator (B0) and the cationic polymerization initiator (B1) is 5 to 200 as a mass ratio represented by component (B0)/component (B1). an epoxy group-containing resin (A); and a cationic polymerization initiator (B) which comprises at least one cationic polymerization initiator (B0) selected from the group consisting of compounds represented by general formula (b0-1) and compounds represented by general formula (b0-2), and a cationic polymerization initiator (B1) which generates an acid having a pKa of -3 or more, wherein the cationic polymerization initiator (B1) comprises at least one compound selected from the group consisting of compounds represented by general formula (b1-1') and compounds represented by general formula (bl-2'): wherein R b01 to R b04 are each independently a fluorine atom or an aryl group which may have a substituent, R b05 is a fluorine atom or a fluorinated alkyl group which may have a substituent, plural R b05 's may be the same as or different from each other, q is an integer of 1 or more, and Q q+ 's are each independently a q-valent organic cation; and wherein R b11 and R b12 each are a cyclic group which may have a substituent other than a halogen atom, a chain alkyl group which may have a substituent other than a halogen atom, or a chain alkenyl group which may have a substituent other than a halogen atom, R 201 to R 203 each independently represent an aryl group which may have a substituent, a heteroaryl group, an alkyl group, or an alkenyl group, and R 201 to R 203 , may be bonded to each other to form a ring with the sulfur atom in the formula, provided that at least one of R 201 , R 202 , and R 203 is an organic group having 16 or more carbon atoms, and wherein a ratio between the cationic polymerization initiator (B0) and the cationic polymerization initiator (B1) is 5 to 200 as a mass ratio represented by component (B0)/component (B1). <EOS>