Sentan Island is a small island surrounded by the Yuden Sea. It exists in a state of dreamlike tranquility, cut off from the war between the Northern Government and the Southern Continent Free Zone. Our hero, Akiyuki Takehara, lives on Sentain Island along with his mother Fusa. He is currently separated from his father, the town doctor Ryuzo, but the bond between father and son remains. One day, after taking Ryuzo the lunch that Fusa has made for him as usual, Akiyuki arrives at school, where he is caught up in an explosion along with his friends, Haru and Furuichi. The explosion produces a mysterious light, which enters Akiyuki's arm, causing him excruciating pain. He's given no time to understand it, however, as the white-haired girl who rode on the bus with him guides him to a power unlike anything he's ever known.

In a futuristic world, young Marty stumbles upon a bionic arm which endows him with superhuman powers and put him at the centre of a centuries-old struggle between good and evil. His teenager heart will now begin a long-way training together with two loyal friends: Buttons, his robo-puppy, and the brave Ally. (Source: Official website)

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)

After reminiscing about his late grandmother, Nobita Nobi wishes to see her again and asks Doraemon to return them to the past. Following the wholesome reunion of the two, Nobita's grandmother confesses that she hopes to meet his future bride. Nobita accepts her request out of filial love and quickly scrambles into the time machine as he and Doraemon journey forward in time. However, when the duo warps to Nobita's wedding day, they discover that the future Nobita is missing from the ceremony! Determined to set things right, Doraemon and Nobita embark on a mission to search for Nobita's future self and encourage him to discover the happiness he deserves. [Written by MAL Rewrite]