K.O.3an Guo Stagione 2

La stagione 2 di K.O.3an Guo è stata trasmessa su da vendredi 19 juin 2009 a vendredi 2 octobre 2009. È composta da 16 episodi, il primo dei quali si chiama "17th Round" e l'ultimo "32nd Round"..

After getting kicked out from their 24th school for starting fights and not being able to find another school that would accept them, Guan Yu and Zhang Fei thought it was a miracle that Liu Bei proposed to be their sworn brother so that they can enroll into the prestigious Dong Han Shu Yuan, a school exclusively for royalty, on the condition that they pay for his tuition. Though enrolled, it doesn't mean they may attend class in peace. They must first survive the school's death traps as well as hostile invasions from warring schools.