Magical Girl Raising Project, Vol. 2 (manga)

Sugar and spice–but not playing nice!
What started as a beautiful dream has become a blood-soaked nightmare. Seven magical girls have been struck down so far–and it only gets worse from here! Grief- stricken over the deaths of her closest friends, Snow White has vowed to quit being a magical girl. But if the fairest maiden of them all gives up, who will keep the dream alive? Is all hope lost for N City…?