駄目社会人の姉と、その他問題児たちが魔法少女になったから、俺がサポートする (Associated Names)

I’m a high school student living with my older sister, Aina, who is already working. While I appreciate how much she cares for me, she’s a bit of a mess and yells about not wanting to go to work every morning. One day, strange creatures and monsters rampaging through the city appeared before Aina and…