Born into a prestigious noble family that has produced many elite magicians, Mimosa is treated coldly because she can only use Enchantment Magic. Even though she is treated as a servant by her older sister and has her fiancé stolen away, she was able to keep working hard because of her memories of being supported by the many Paper Cranes given to her in her previous life when she was bedridden with illness. ――In this life, I want to be useful to someone. With that thought in her heart, Mimosa writes down the day's events in her diary and spends every day flying Paper Cranes imbued with wishes using her Enchantment Magic into the sky. However, in days where no matter how much she gave, she was never rewarded, she was beginning to feel a sense of doubt little by little. Then one day, a young Hero who claims to have been saved by a Paper Crane appears before Mimosa, and her destiny begins to move greatly!! In fact, it seems Mimosa has a special power that even she hasn't noticed――!? While traveling with the Heroes, she helps people in trouble with the power of Origami, in a heartwarming Fantasy of giving back!!