Warning! Major spoilers for My Hero Academia Chapter 339 to follow! After a long stint away, fan favorite Support Class engineer Mei Hatsume finally made her grand return to the manga series! It's been quite a while since we have seen her in action as the hero world not only went through massive changes in the Paranormal Liberation Front War, and the aftermath is shown to be just as chaotic through the first arc of the Final Act of the series so far.Each of the young characters has gone through a huge amount of change in a limited time, and that's true for the non-heroes too.