Naota Nandaba is an ordinary sixth grader living in a city where nothing amazing ever seems to happen. After his brother Tasuku leaves town to play baseball in America, Naota takes it upon himself to look after everything Tasuku left behind—from his top bunk bed to his ex-girlfriend Mamimi Samejima, who hasn't stopped clinging to Naota since Tasuku left. Little does Naota know, however, that his mundane existence is on the verge of being changed forever: enter Haruko Haruhara, a Vespa-riding, bass guitar-wielding, pink-haired psychopath whose first encounter with Naota leaves him with tire tracks on his back and a giant horn on his head. Though all he wants is some peace and quiet, when Haruko takes up residence at his parents' home, Naota finds himself dragged into the heart of the greatest battle for supremacy that Earth—and quite possibly the entire universe—has ever seen. [Written by MAL Rewrite]

Nanba is the world's most formidable prison, built to incarcerate criminals who are too slippery to stay in ordinary confinement. The four inmates who occupy Cell 13 are particularly cunning on that behalf, having escaped every other prison with a perfect success rate. There is Juugo, a specialist in locks who has spent the majority of his life in prison; Uno, a gambler with great intuition; Nico, an otaku whose body reacts strangely to drugs; and Rock, a bruiser with a love for food. The daily shenanigans of the four prisoners always cause trouble for the building supervisor, Hajime Sugoroku, who desperately tries to prevent them from breaking out of Nanba. Nanbaka follows the comedic, sparkle-filled exploits of these prisoners and their guards. From three square meals a day to sports festivals, prison life in Nanba isn't actually that bad—and it is the closest these four have to a home. [Written by MAL Rewrite]

Ichirou Satou is an ordinary high school student who pretended that he was a hero by the name of "Maryuuin Kouga" back in middle school, which led to others frequently bullying him. Now that he has left this embarrassing phase behind, he does his best to avoid standing out and live a peaceful life, although he feels the world has become quite dull. But when he makes his way back to school one night to grab a textbook he left in class, he runs into a strange girl wearing a costume. This girl, Ryouko Satou, happens to be his classmate and is affected by the exact same condition that he once had, holding on to a delusion that she is someone else and dressing up to reflect this. The very next day, Ichirou is asked by his teacher to become friends with Ryouko, to which he adamantly refuses, unwilling to be reminded of his own history. When he sees that she is being bullied just as he once was, however, the boy makes it his responsibility to take care of her and break her free from that which what once plagued him—the perfect job for Maryuuin Kouga. [Written by MAL Rewrite]

"Dear diary... I got reincarnated as a slime." Even in another world, lives aren't always on the line. There's plenty of work to be done, from feeding the community and forging the items the community needs; as well as plenty of play ...and hijinks throughout! Join Rimuru and friends as they kick back and enjoy their daily lives.