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In a magical world, everyone can use different levels of magic depending on their own talents and experience. The heroine Han Ningyu is a very talented female magician. She has achieved good results in magic school and has a special ability that no one else knows about. He would recover immediately every time he was injured. He originally lived a glamorous life, relying on her kindness and talent, but everything changed when she went out with her friends on her twentieth birthday and picked up a cross necklace. That's when everything changed. . . . . .