Hacka Dolls are AI designed to personalize news and information for users, serving various groups including government officials and professional athletes. However, three subpar models were created with noticeable personality flaws, resulting in their deployment to Earth with the goal of contributing to humanity. Their tasks vary widely, from encouraging a doujinshi artist at Comiket to participating in an idol group, as long as they align with the dolls' moral codes. The three Hacka Dolls approach their mission with dedication and genuine enthusiasm.