Characters
- Guan Yu (關羽)
Guan Yu is straight-headed, righteous and loyal. He is known for fighting around the world alongside his best friend, Zhang Fei, with whom he has attended twenty-four schools together (only because he always gets kicked out for starting fights). Eventually, he lands a place in East Han Academy (東漢書院) with the help of his sworn brother, Liu Bei.
Because of his honesty, he is sometimes taken advantage by his enemies. His friends are often forced to lie to him, which leads to unpredicted consequences.
Guan Yu will blush bright red for two reasons; when he is embarrassed or when he gets extremely upset.
He is the second sworn brother to Zhang Fei and Liu Bei.
He develops a crush on the principal's daughter, Diao Chan on his first day in school. They later become a couple.
Guan Yu’s weapon is "Qing Long Yan Yue Dao" (青龍偃月刀 / Green Dragon Crescent Blade). "Long Yin Tai Xu" (龍吟太虛) is his primary attack, but because its power is unlimited, he only uses it in battles when it is absolutely necessary.
- Zhang Fei (張飛)
Zhang Fei comes from a very wealthy family. All gangster members are afraid of his wrath and would do anything to avoid provoking him, even to the point of pretending to be nice and polite.
With some help from his sworn brother Liu Bei, Zhang Fei manages to enroll East Han Academy (東漢書院) - where he can explore his abilities.
Whenever someone calls him "Xiao Nao Nao" (小孬孬) he will get so mad that his face will turn black, his strength will rapidly increase, and he will start attacking his bullies.
Zhang Fei and Guan Yu are childhood friends and have been expelled from twenty four schools together. When they encounter Liu Bei, the three of them become sworn brothers, with Zhang Fei being the youngest of the three.
Zhang Fei’s weapon is "Zhan Ba She Mao" (戰八蛇矛 / Battle Eight Snakes Lance).
- Liu Bei (劉備)
Liu Bei is the eldest sworn brother of Guan Yu and Zhang Fei. He is a descendant of the royal family.
Although he appears to be righteous, he is actually extremely selfish. He only becomes sworn brothers with Guan Yu and Zhang Fei in hopes of manipulating them to dominate the schools and become the most powerful person in the Silver Dimension.
The moment he swears his vows a gigantic rock (caused by Da Dong's coin) falls down on him, severely injuring him before he could execute his evil plans. To maintain the balance of the universe, Zhang Fei, Da Dong, Ya Se and Xiao Yu force Xiu, his Iron Dimension counterpart, to remain in the Silver Dimension, thereupon taking Liu Bei's place, while Da Dong, Ya Se and Xiao Yu take Liu Bei to the Gold Dimension (金時空) for treatment.
- Xiu (脩) / Liu Bei (劉備)
Xiu is a power-user from the Iron Dimension (鐵時空) who is the leader and main guitarist of the magical music band, Dong Cheng Wei (東城衛).
Xiu’s alternate counterpart in the Silver Dimension (銀時空) is Liu Bei. After Liu Bei is fatally injured, Xiu finds himself put in a position he’s never imagined before: to be a leader and run an army of his own.
His involvement is part of what triggers the story of K.O.3an Guo in the first place.
The members of Xiu’s family specialize a spell called "She Xin Shu" (攝心術): it enables them to control their target’s actions.
Xiu has three special weapons:
- One of them is a guitar pick called "Shen Feng Pi Ke" (神風鎞克 / God Wind Guitar Pick) that increases his powers and produce healing energy.
- The other two being a pair of guitars called "Qing Hong Zi Dian" (青虹紫電 / Green Rainbow Purple Lightning).
Xiu falls in love with a girl named Sun Shang Xiang.
- Diao Chan (貂蟬)
The adopted daughter of East Han Academy’s (東漢書院) headmaster, Wang Yun. She is known as the prettiest girl in the world, whose beauty comes with a kind heart.
She dislikes people who fall in love with her because of her appearance.
Diao Chan's wish is to find true love and eventually she encounters Lu Bu and experiences true love for the first time with the man who becomes the love of her life. Later, after realizing Lu Bu was not who she thought he was, she parts with him and starts dating Guan Yu.
- Xiao Qiao (小喬)
Xiao Chao and Diao Chan are best friends, the two often discuss personal things together.
She has a hard time watching her mouth; for some reason, whenever she says something bad will happen it always does, causing everyone around to feel fearful and uneasy whenever she voices her opinions. Others often refer to this as Crow's Mouth (烏鴉嘴).
She sometimes involves herself with the Five Tiger Generals' (五虎將) missions.
She used to date Zhou Yu and has broken up with him.
Currently she seems to have a crush on Zhao Yun.
- Zhao Yun (趙雲)
Although Zhao Yun is listed as the third Tiger General, his power is actually almost equal to Guan Yu's.
Every female is immediately attracted to him. Once he breaks eye contact with them, their hearts will break. Diao Chan is the only female to be unaffected by him.
Initially, he does not get along with Guan Yu and the others very well. Zhang Fei likes to embarrass him whenever he is around a girl.
Zhao Yun’s weapon is "Zhui Feng Xi Yin Qiang" (追風洗銀槍 / Wind Following Silver Cleansing Spear).
He might have a crush on Xiao Qiao.
- Ma Chao (馬超)
Born to a family of powerful warriors, he known for avoiding fighting. He always first lets his enemies hit him three times; he will accept defeated if they are able to strike him down, otherwise they must leave him alone. His refusal to fight is because he indirectly killed his best friend when he was a child. He has strength equal to Guan Yu even though he is the fourth Tiger General.
Ma Chao’s weapon is "Piao Qi Xuan Tie Qiang" (驃騎玄鐵槍 / Steed Mount Deep Iron Spear).
- Huang Zhong (黃忠)
An excellent bowman who never misses his target.
His father was murdered and though he eventually learns that his mother is part of Huang Jin Gao Xiao (黃巾高校), an evil school.
Of all the Five Tiger Generals (五虎將), he is the only one with no family and therefore treasures their relationship more than any of them.
Huang Zhong’s weapon is a metal glove with an electronic crossbow attached named "Yu Tian Gong Bing Po Yin Jian" (御天弓 / Chariot Heaven Arrow Bow) and "Bing Pi Yin Jian" (冰魄銀箭 / Ice Vigor Silver Arrows).
Because Huang Zhong's respiration rate and pulse are slower than usual people, it's very hard for him to be affected by airborne toxins and poisons.
- Lu Bu (呂布)
He is the adopted son of Dong Zhuo. His existence was a secret until Dong Zhuo decided it was time to reveal his identity, by plotting with Huang Jin Gao Xiao (黃巾高校) to kidnap Diao Chan and allow Lu Bu to rescue her so in order to get close to her father Wang Yun and help Dong Zhuo usurp the position of East Han Academy's (東漢書院) principal.
Though their relationship began from a lie, Lu Bu eventually falls for Diao Chan. Their budding relationship is embroiled in conflict when Diao Chan discovers that he is Dong Zhuo's son and the real reason he started dating her. Through this relationship, Lu Bu becomes torn between his father and lover.
Lu Bu’s weapon is a spear called "Fang Tian Hua Ji" (方天畫戟).
- Cao Cao (曹操)
Cao Cao is a member of the royal family.
He is the student body president of East Han Academy (東漢書院). In the election against Lu Bu for the position of student body president, his election motto was Say Cao Cao and Cao Cao will arrive (說曹操，曹操到), which is the equivalent of the English idiom Speak of the Devil . This line continues throughout the series.
He has a crush on Xiao Qiao (小喬).
His ultimate ambition is to dominate the world.
He is known as the strongest potential enemy against the Five Tiger Generals (五虎將) despite being their friend.
- Sun Shang Xiang (孫尚香)
Sun Shang Xiang, often addressed as Ah Xiang (阿香) by others, is the daughter of Sun Jian (孫堅), the principal of Jiangdong High School (江東高校) and the younger sister of Sun Ce. When Cao Cao and Guan Yu were imprisoned under Dong Zhuo's orders, Cao Cao's father asked for her father's help. He passed on the responsibility to Ah Xiang (阿香) because of her mischievous personality. After she succeeded her mission, she "transferred" to East Han Academy (東漢書院) as a new student.
Ah Xiang falls for Xiu / Liu Bei shortly after their first encounter. They become a couple.
Ah Xiang has the ability to communicate through radio devices, an ability called "U-Pod". This is an ability from the Iron Dimension (鐵時空).
In the 13th episode, Ah Xiang demonstrates a defensive power called Da Bing Qi Ning (大兵氣凝), but Zhang Fei mistakes it for "Da Bing Qi Lin" (大冰淇淋) meaning "large ice-cream." It renders whoever she targets to become temporarily immobilized. In the 15th episode, Ah Xiang reveals her main weapon, a red arrow bow called Scarlet Flame Fairy (赤焰精靈).
- Jiang Gan (蔣幹)
Class monitor and student body vice-president. Likes to blackmail younger and inferior students.
Everyone in class will repeat his name, "Gan" (幹). His surname sounds like the word 講 meaning "to speak" or "say". Furthermore, "Gan" (幹) translates to "Fuck".
