Mahouka Koukou no Rettousei 2.0

If Tatsuya was lazier and wasn't in a world where magic is everything. Basically it's just like an Isekai with all the monsters and etc. but instead the mc going to another world with the rest of his class, the magic creatures are coming to Japan. Basically read the Mahouka Kouko no Rettousei summary cancel out the part about other people having magic powers and him being an elite child soldier and its this manga. Comes complete with an annoying female classmate and a little sister who loves her brother who from some reason get along despite being rivals.