Why Do Guys Turn into Magical Girls?

After transmigrating to a world much like Blue Star, Hibiki and found himself with no parents and only his younger sister to depend on. To avoid working two part-time jobs after school, he decided to live off a woman. Er, no, to marry into a wealthy family. But why did nobody tell him that a giant lightning pig monster would suddenly show up in this perfectly ordinary modern city? And why can boys transform into magical girls? Transforming into a magical girl is one thing, but why do I have to be all flashy and multicolored? What if some pervert kidnaps me and makes me lay eggs? I’m no good at writing blurbs. Come see for yourself.