Magical Explorer, Vol. 3 (light novel)

Still in his first year at Tsukuyomi Magic Academy, Kousuke Takiotocontinues his freewheeling routine of clearing dungeons with the heroinesbetween bouts of training. However, his tendency to cut class isn't lost onthe other students, who now view him as a slacker. Despite this, YukineMizumori can't help but marvel at how none of this seems to phase our hero.But Kousuke isn't content leaving things there-this time, he'll settle fornothing less than achieving the fastest dungeon clear time in theAcademy!