Wakaba Yuuki, a girl who had a painful and empty childhood, had her heart broken by the betrayal of her best friend and lover. Feeling pained by the betrayal, she ran away and saw them almost got hit by a truck. Still holding them dear, she pushed them and got hit as sacrifice. Thus, the god who took pity for her, let her be reincarnated into a new world. Then, a story of a masked and blindfolded woman began in another world.

For months Summer is trapped in a cellar with the man who took her - and three other girls: Rose, Poppy, and Violet. His perfect, pure flowers. His family. But flowers can't survive long cut off from the sun, and time is running out...