Daimyouzamurai Mei, a mysterious transfer student, enters Hatagaya Academy class 1-F. It seems she has the same ability to see flags and manipulate them, just like Souta. Meanwhile, class 1-F is split into two groups based on their grades into swimming, and go on a trip to the ocean and the forest. For some reason, Souta's forced to join both trips...
Sota Hatate is a boy who has the unique ability to see "Flags" above the heads of other people. The "Flags" mark critical crossroads in people's lives — when the choices they make will determine love, friendship, victory, and even death. He transfers into Tokyo's elite Hatagaya Academy, but instead of living by himself in the boys' dormitory, he ends up living with many beautiful girls under one roof.
