In Order to Save My Sister, I Summoned the Dark Magic Girl at the Beginning.

In order to treat his sister, he spent all his family's money and finally gave it a try, but in the end it was just a mirror image. In a moment of despair, the system finally appeared, and at the beginning, the Dark Magician Girl was summoned and became the Summoner! "Master!" He thought that by becoming an extraordinary person, You Yu could cure his sister's illness and live a happy life without shame. But. With great ability comes great responsibility! Facing the invasion of demons, humans are retreating steadily. For the sake of his sister and for the sake of mankind, You Yu stood up. When the magic power of the black magician awakens, when the light of the blue-eyed white dragon shines! The demon army is vulnerable; The so-called demon was standing in front of him, but You Yu showed no fear. Behind him, the three illusory gods stood in the sky, roaring and roaring! "My turn!" "..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.