1. A lighting control system, comprising:a storage which stores a plurality of parameters;
a light emitter which emits light in a predetermined mode according to the plurality of parameters;
a controller which selects two or more parameters from among the plurality of parameters stored in the storage to generate a group of parameters including the two or more parameters selected; and
an obtainer which obtains an instruction from a user, wherein:
the light emitter emits light at a predetermined time in a mode according to the group of parameters generated by the controller,
when the obtainer obtains a degree of comfort selected from among feeling options each indicating a feeling of the user, the controller generates a new group of parameters by changing, according to the degree of comfort, one or more parameters among the two or more parameters included in the group of parameters,
the feeling options include a first option indicating a positive feeling and a second option indicating a negative feeling, and
the number of parameters changed by the controller in generating the new group of parameters is smaller when the user selects the first option than when the user selects the second option.