In the mid-21st century, Tokyo's mafia can turn into ether-enhanced Demon Lords, and Braves hunt them down. Yashiro, the Grim Reaper, reluctantly takes a new apprentice named Aki Jogamine, a high school girl training to become a Brave. He soon finds himself dragged into one troublesome case after another. The supernatural story of a scumbag master and his self-proclaimed apprentice begins!(Source: Crunchyroll)

Juuzou Oogami is a legendary hitman who has never failed an assignment, no matter how impossible. One day, after wiping out a powerful organization, he is stung by a mysterious wasp and collapses. When he wakes up, the fearsome 39-year-old assassin has been transformed into a 13-year-old boy! Before he can even process what happened, his boss delivers a new order: “In that body, infiltrate a middle school.” What awaits him is an unexpected school life filled with colorful classmates, youthful chaos, and looming danger. Can Juuzou ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!? (Source: Official Site)

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! Across the scorched and broken land, survivors cling to hope, desperately searching for food and water. However, their hopes are trampled underfoot by violence. Might makes right in this world, and the weak are crushed without mercy. 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. Standing in his path are brutal survivors of the apocalypse, their ambitions twisted by power and greed. In a world where the weak are prey and prayers go unheard, Kenshiro forges a path with his iron fists! (Source: Official Website)

Touya Senji is talentless. He's tried everything but he can't seem to excel at anything no matter how hard he tries. Then he meets Haito, a Kendo champion and... humanity's protector? She uses the Stem of Reincarnation to draw on the abilities of her past lives, but it only works when she slits her own throat. And now she wants Touya to join her?! (Source: Mangamo, edited)