Carried by a Big Girl

Ichika, Shinome, Lena, and the protagonist — in a strange turn of events, the four poor souls are trapped in a parallel world that resembles their school. And to make matters worse, the protagonist has been shrunk and is inexplicably naked! Unable to so much as run, all he can do is shiver from the cold. But luckily, Ichika happens to spot him and "reluctantly" offers to carry him while they explore...​