High School Prodigies Have It Easy Even in Another World!, Vol. 3 (manga)

Taking down the local lord was child's play for the seven high school prodigies, and though they're well on their way to all out war with the empire, they're first going...to church?! The geniuses set their sights on religion in the alternate realm of Freyjagard, where abuse of power runs rampant in all aspects of society. Intent on wielding their special skillsets for the good of the little guy, the brilliant high schoolers set about changing the world and making history!