There was a boy named Hiro Hamada. A boy genius, that loves robotics. He had a older brother, his name is Tadashi Hamada. He was an inventor. He made a robot named Baymax. His friends was Gogo, Honey Lemon, Fred, and Wasabi No-Ginger. One day, Hiro wanted to enrolled to Tadashi's school, San Fransokyo Institute of Technology. The only way to the get in was to invent a performance for their professor Robert Callaghan at the showcase. With the help of his friends, and his older brother, he manage to create Microbots for the showcase. After the performance, which was a complete success. Someone wanted his Microbots, Krei Alistair. He refuse the offer of joining the Krei Industries. After that, everyone headed to Aunt Cass, Tadashi's and Hiro's aunt cafe, as Tadashi and Hiro went to the park to bond. Then, there was fire and killed Tadashi, by just saving Professor Callaghan.