Uro Yamada and Karon, a 17-year-old girl, collaborate at the 'Hero Retirement and Return to Everyday Life Assistance Agency.' This unique agency aids heroes in readjusting to normal life on Earth. Karon, a former hero, assists Uro in handling cases and resides with him. Despite Uro's efforts to temper Karon's heroic tendencies and teach her ordinary conduct, she proves challenging to rein in.