There's always light in dark places (Black clover x oc) (DISCONTINUE)

Mitsuko Akuma is the child of light and darkness. She was left at the stairs of a church with two babies. One of boys that was also left at the church has wind magic and the other has no magic. Before they get their grimore She finds out that she can you light and dark magic and that she has the rare grimoire,the yin and yang grimoire. Her and her childhoods friend race to the finish line to see who become the next wizard king/queen.