High School Prodigies Have It Easy Even in Another World!, Vol. 4 (manga)

After successfullygarnering support for their religion, "the Seven Luminaries," the high schoolprodigies prepare to head into an all-out war with the empire.But when Gustavuses magic power to suddenly set everything ablaze in a fit of fury, its up tothis dream team to use their superior abilities and technology to tilt thescales back in their favor!