Fist of the North Star (2026, showrunner Masami Takahashi)
Original title (JP): 北斗の拳 (Hokutonokobushi, Fist of the North Star)
In the year 199X, the world is engulfed in a nuclear inferno! The seas have vanished. The earth lies in ruins. It seems all life has been wiped out...but humanity has not perished! From the depths of that despair, a lone man with seven scars on his chest emerges. His name is Kenshiro, heir to the legendary assassination art Hokuto Shinken. As he roams the wasteland in pursuit of his sworn enemy Shin, who stole his fiancée Yuria, Kenshiro answers the cries of the oppressed, becoming a beacon of hope in a world of despair. In a world where the weak are prey and prayers go unheard, Kenshiro forges a path with his iron fists!
There's nothing particularly exceptional about Fist of the North Star. It was just an especially gruesome shonen manga and anime that found a niche audience that happened to be famished for adult-themed content. The series found itself as the lightning rod for that market not because it was critically any good, but because of all the superlatives that it attained: the goriest, the bloodiest, the most gnarly.
Credit where credit is due: the series deserves respect for breaking those barriers and paving the way for decades of more mature and interesting stories. But I really don't think the kids are going to dance to that same old tune again.
This one is purely for the Member Berries (see also Ranma 1/2).