A former gymnast, Aikawa Maki has turned her skills to a different way of life—street fighting. The only thing that truly makes her feel alive is violence. With amazing power and grace, she fights opponent after opponent, repeatedly demonstrating the gymnastic talent that earns her her nom de guerre, "Airmaster."

Fourteen-year-old Kouichi Hayase's life has always been a mediocre one, if not dismal. However, those days of being bullied by classmates and escaping to a fantasy of being a hero are put to an end when a certain "accident" bestows on him a girl and a gigantic humanoid robot called "LINEBARREL." The extraordinary power that Kouichi obtains puts him and everything around him on a sudden rollercoaster ride of battles, intrigues and friendship! During the course of his adventure, the boy starts to learn what life has to offer; he meets new friends, bids farewell to the old ones, but most of all he now has considerable responsibilities and is forced to confront the world around him. (Source: Official site)

Rinne Rokudou has bigger problems than going to school—namely, helping spirits pass over to the next life. Because of this responsibility, he often finds himself short on money and struggles to buy his necessities: food, clothes, and exorcism tools. Sakura Mamiya has been able to see ghosts since she was little. She hoped she would outgrow it, but even after starting high school, nothing has changed. To make matters worse, the first time her ever-absent classmate, Rinne, shows up for school, only Sakura can see him. She assumes, as anyone would, that he is a ghost. However, to Sakura's surprise, Rinne proceeds to attend school like normal the next day. Kyoukai no Rinne chronicles Sakura's journey as she learns of Rinne's true nature and the existence of a hidden supernatural world. [Written by MAL Rewrite]

Lucifer has been awoken from his eternal slumber by the spirits of Eris, Abel and Poseidon. He has come to kill Athena and fulfill his heart's burning desire: becoming the strongest of all the gods.