Mondaiji Tachi Ga Isekai Kara Kuru Sou Desu Yo Ss2 The sao part is 2 sided on one side its the most hated public anime and on the other its one of the best and most liked isekai anime out there though

Covering volumes 1 and 2 of the light novels and ran alongside the anime though outlasting it as the eighteen chapters were released once a month