After suddenly losing his home in a fire, Riku comes to live with the Tennozu sisters—three dazzling beauties blessed with both looks and talent, admired as unreachable flowers. However, when he sees the disastrous state of their home caused by their complete lack of life skills, Riku decides to use his household talents to support them! As the earnest and considerate Riku devotes himself to helping them, the genius sisters gradually find themselves drawn to him…