I Was Contracted by a Magical Girl

In order to help my family grab discounted products from the supermarket. By chance, on the way home, I met a magical girl who was in a fight. He bravely stepped forward to help. Inexplicably absorbing the power of the magical girl. For world peace. Of course, he became a tool to help magical girls transform! It's just that the way of transformation is a bit... Tangze Tetsuya: "Ahem, at this time, there is no need to transform." A certain magical girl: "Oh, don't you like it? (Laughing)" Tangze Tetsuya: "Continue, don't stop." Also known as "The Magical Girl and Her Power Depend on Me, I Can't Leave!" "That day, I became her light!" "The way she transforms is a little hard to describe.