A favor generation system includes: a power source unit (110) that includes a power source (10) that is electrically connected to or connectable to a load (121R) for atomizing an aerosol source or heating a flavor source, and a first controller (50); and a charging unit (200) that includes a second controller (250) and that is capable of charging the power source. The first controller and the second controller are configured to be capable of controlling a charging speed of the power source. In the control of the charging speed, a first object to be operated by the first controller is different from a second object to be operated by the second controller.