Yuuta Segawa has just started his freshman year of university. One day, his sister Yuri, who raised him after their parents died, asks him to take care of her daughters Hina, Sora and Miu while she and her husband go overseas on a business trip. Yuuta grudgingly accepts, but tragedy strikes when their plane goes missing and all passengers are presumed dead. In an effort to prevent the three girls from being split up, Yuuta goes against their family and takes them in, just as his sister took him in when he had no one else. Now the four find themselves in a new and peculiar situation: Yuuta must learn how to balance his new responsibilities—as the newest member of the Street Observation Research Society, a club for people watching, and also as a father figure—while Sora, Miu, and Hina come to terms with the loss of their parents. [Written by MAL Rewrite]

Brandon Heat and Harry MacDowel, two friends so close they could be called brothers, receive an abrupt and violent reminder one fateful day of how appallingly merciless the world around them can be. Their whole lives before then were simple and easygoing, consisting largely of local brawls, seducing women, and committing petty theft to make a living and pass the time. What they failed to realize is that in this cruel world, happiness is fleeting, and change is inevitable. Enter Millennion, the largest and most infamous mafia syndicate in the area, which accepts Brandon and Harry into their ranks and starts them at the bottom of the food chain. Harry has ambitions to ascend the ranks and one day replace Big Daddy as the supreme leader of Millennion, while Brandon only wishes to support his friend and appease Big Daddy who has taken custody of the woman Brandon loves. Based off the third-person shooter video game under the same name, Gungrave is an epic story of friendship, betrayal, and avarice that spans the course of several years, ultimately tying back to the gripping and foreboding first episode, all the while building up to the story's thrilling conclusion. [Written by MAL Rewrite]

Having been accepted into the Kaede Inn, Nana struggles to find some way to contribute, though she inadvertently brings more trouble than assistance. However, Nana's worries are directed more towards fellow resident Nyu, whom she had only known as Lucy, the violent Diclonius. Fearful that Nyu will unleash the same horrific savagery—violence that scars Nana to this day—upon those close to her, Nana faces a dilemma: attempt to live peacefully alongside Lucy with all the uncertainty that that entails or dispose of the source of her worries, shattering the relationships she has formed at the inn. As Nana struggles to come to a decision, Nyu recalls a painful memory of one of her dearest friends and one of her greatest rivals. [Written by MAL Rewrite]

On the hot summer day of August 14, Shintarou Kisaragi is forced to leave his room for the first time in two years. While arguing with the cyber girl Ene who lives in his computer, Shintarou Kisaragi accidentally spills soda all over his keyboard. Though they try to find a replacement online, most stores are closed due to the Obon festival, leaving them with no other choice but to visit the local department store. Venturing outside makes Shintarou extremely anxious, but the thought of living without his computer is even worse. It's just his luck that on the day he finally goes out, he's caught in a terrifying hostage situation. Luckily, a group of teenagers with mysterious eye powers, who call themselves the "Mekakushi Dan," assist Shintarou in resolving the situation. As a result, he is forced to join their group, along with Ene. Their abilities seem to be like pieces of a puzzle, connecting one another, and as each member's past is unveiled, the secret that ties them together is slowly brought to light. [Written by MAL Rewrite]