Ten no Tori Hana no Yume

Mayuko Eda is a high school freshman who, as a child, absorbed a mystical heavenly flower into her body. Because of this, her physical development has remained stunted despite entering adolescence, leading to feelings of unease about her differences from others. While visiting the Koshikake Cedar Shrine in the forest, she encounters a mysterious man with large black wings. He asks her for a flower in return for fulfilling a wish. The identity of this winged man remains unclear.