i just gave some examples of the most popular anime out there but they dnt wanna listen....in dragon ball, even when character like krillin and yamcha became absolutly irrelevant, they still made it alive after the buu sage, in one piece, the war of the best, a war never seen before, but no named characters died except the ones that had to so the plot could continue, in bleach the FKT arc no one died even after aizen chopped, sliced,nuked them....it's like that in every shounen main characters are always gona make it no matter what unless it's for plot purpose...it's like an unwritten rule