Yuri Espoir Vol. 1 (manga)

After finding out she is to be forced into an marriage of convenience as soon as she graduates high school, Kokoro sees her life ending before her eyes at her father's wishes. And so in her final year of high school, she decides to indulge in her love of other women, and create an incredible sketchbook of lesbian romance to leave behind as her legacy. As she observes the young women of her town, she learns more about their desires, their struggles, and the unpredictable whims of love.