This Magical Girl Is so Sinister

The extreme pragmatist Leng Ji was sent to a magical girl world by a truck, and as expected he became a magical girl. After receiving the "adaptive" ability granted by the Seed of Hope, he began to slowly transform his magical girl body into a combat weapon. "It's time to give this world of magical, desperate beasts a little pragmatism shock!" Also known as "Who says magical girls can't turn into monsters" and "This magical girl is crazy"