Ahhh.. i know it as "fighting spirit" or thats the japanese translation!
here is a bit more about it I will write sophisticated so you understand!
Ippo (Main Character) was always bullied in school. During the course of a routine beating, the path of his life was forever altered when up-and-coming boxer Takamura (Not too shabby looking) made short work of the bullies. Enticed by the notion of being strong, Ippo became intent on learning boxing. Coaches at the gym are astonished by his natural aptitude for the sport and begin training him for the battles to come.