So , I remember reading this manga like two years ago but I don’t remember the title and I can’t find it .
This manga was about this high school class witch in reallity were all people who reincarnated from another world. The protagonist is this male who in his previous life was the princess. The plot from the previous life was the fact that there was a war and everybody died in the same battle and that war is now being continued in their second life’s.

Does anyone know the title of the manga I am talking about ?

Perhaps Bokura no Kiseki?

Thanks so much , that was it !
You are my saviour! 😀 😁