A recurring item of the series is the Monster Fusion Vessel (Lian Yao Hu, 煉妖壺), created by the goddess Nüwa in emulation of the Immortal Creation Ding (造物仙鼎) to cleanse the world.
They are: (Chinese: 軒轅劍, literally "Xuan-Yuan Sword") In the beginning of the world, the goddess Nüwa created two kinds of intelligent life: those of men, and those of monsters, who warred among each other all the time.
Led by a single heroic figure, Xuan-yuan Swordsman (軒轅劍俠) who wielded the Sword, the war between humans and monsters ended with both sides suffering heavy casualties.
Seventeen years later, the main character, He Ran (何然), a young swordsman left his mentor to set off on a journey into the chaotic world to carve his own path.
Players started the game as a novice adventurer with minimal fighting skills and can gain combat experience through battles to enable progression to other areas and advance the plot.
(Chinese: 軒轅劍貳, literally "Xuan-Yuan Sword 2") Continuing from where the first game left off, He Ran (何然), together with the vigilante Yang Kunshuo (楊坤碩) and the young thaumaturge Jiang Ruhong (江如紅), defeated the dreaded incarnation of the Flaming Phoenix (火鳳凰) (the sinister monster who kidnapped Jiang), befriended a benevolent fox spirit Gu Yuesheng (古月聖), and traveled back in time to find He Ran's parents.
This installment also introduced a recurring element of the series, the DOMO Studio that is present in all future games in vastly different incarnations that players can visit to access humorous fourth wall-breaking dialogue, quests, and items.
After finally reaching China and encountering a variety of conflicts, including the An Lushan Rebellion, the group discovered Satan's plan to subjugate all worlds by using the Reversal of Mandala Ritual (反曼陀羅陣), which Septem's past incarnation invented and gained time traversal powers from, to modify the natural laws of causality, and managed to foil it with the assistance of The Immortal of Xuan-yuan Sword (the avatar of the Xuan-Yuan Sword who takes on the form of a stern and wise old man).
After Satan's defeat, Septem married Widad, returned to assist Charlemagne with lessons from his journey-that a ruler must rule in the best interests of the commonfolk, and the way to ensure victory lies in the prevention and cessation of conflicts, and later reunited with Nicole, who was reborn once more as a normal girl by the grace of Heaven.
The story starts with an orphaned girl from the late Zhao state, Shui Jing (水鏡) and her senior disciple-sister, Qu Xian (屈嫻) on the top of a mountain with their seniors from the House of Mo, a Mohist clan actively opposing the tyranny of Qin and its leader, who is often accompanied by a mysterious purple-skinned adviser (later revealed to be the original Vessel Spirit on an ideological mission to create an unified utopia by absorbing the mortal world into the universe created by the Spirit - "Realm in the Clouds").
Later, Shui Jing meets with Ji Liang (姬良) (later known as Zhang Liang 張良), a well-educated young man from the annihilated Han state who can utilize the Scroll of Heaven (Tian Shu 天書) in battles after obtaining and deciphering it in an early escapade with Shui Jing, and Ji Peng (疾鵬), a humorous talking bird king who employs a humanoid Jiguan body in battle.
The two traveled around the world, meeting with people from other kingdoms, and set out to accomplish a task given to them by the Elder of the Green Dragon Kingdom, leading to a confrontation with the exiled Princess of Heaven, Qing'er (青兒), who helped the Yellow Emperor, Ji Xuanyuan (姬軒轅), claim the mortal world for humans and was banished due to her newly acquired form causing cataclysmic droughts after expending her power in aiding him in reforging the sword that would later be known as the Xuan Yuan Sword.
With the passing of King Wu from illness, the Duke of Zhou who served as a royal advisor was accused of attempting to seize the throne, and had to resign to prove his innocence, causing the kingdom to be leaderless and the political situation to become volatile.
Feng Tianling's companions are Huyue (瑚月), a beautiful maiden from a mysterious tribe who is attached to Tianling because of a supposedly destined marriage, Ji Ting (姬亭), the Zhou princess skilled in archery who values bravery and prowess, Jialanduo/Kalandra (迦蘭多), a Shendu royal with chakra manipulation skills who is searching for his sister, and Rong Shuang (蓉霜), a young Black Fire Sect disciple from Shu on a mission with her fellows to recover their cultural artifact, Black Fire.
Thus they adopted the strategy of subterfuge, hampering his every effort to collect the Blood Pearls without direct confrontations, and was even helped in secret by a young princess named Dugu Ningke (獨孤寧珂), who held tremendous political power due to her relation with her uncle, the emperor, and protested Yuwen's actions.
Eventually, their plan failed, and Yu Xiaoxue was held as a hostage by Tuo in exchange for the Artifacts that Jingchou's party had collected, namely the Shennong Ding, the Seal of Kongtong, the Pangu Axe, the Nüwa Stone, and the Kunlun Mirror.
Surprisingly, Yu Xiaoxue refused to leave with Jingchou, stating that she intended to stay and help Tuo's project, and seemingly betrays his trust by repelling his attack on Yuwen's plans wielding the Xuan-Yuan Sword.
She infiltrated China by possessing the original Princess Dugu who died of illness, and arrived in anticipation of what was calculated to be the time a comet named Crimson Piercer (Chi Guan - 赤貫) would pass through the sky, opening a rift in the divine protective barrier of the Chinese lands and allowing an opportunity for demons from the West to invade.
Days later, under the instruction of the now immortal He Ran and Gu Yuesheng (last seen in Xuan-Yuan Sword 2), Jingchou's group, which now also includes a young Li Shimin successfully retrieved the Artifacts from Ningke's handmaidens in the bloodied world, and returned to the Tower.
Coming across the Heavenly Maiden White Jade Ring (天女白玉輪), an eight trigrams formation used by the deities Fuxi and Nüwa to revive their deceased daughter in ancient times, Jingchou had the choice to bring Yu'er back to life at the cost of expending a great deal of Xiaoxue's power.
Ningke exploited this before heading to Chi Guan by giving Chen Fu the Fruit of Satan, a demonic object that grants power in exchange for sanity, deceiving him into battling against his student.
Set within the Spring and Autumn period, the story is told from the perspective of an orphaned girl, Che Yun (車芸), whose family was framed by a corrupt official and executed.
Che Yun was talented in the art of Mujia - a technique of creating and manipulating constructs of magnets and wooden machinery, which are lightweight yet powerful, with her late grandfather as her inspiration.
She entered the gate when it next opened in a thousand years after she returned to the future in which Jin overcame Qin to fight for the welfare of the common-folk, encountering a sorrowful aged Huan and offering forgiveness and acceptance as Che Yun would have.
However, on the Fourth Expedition, Thanks to its own group of powerful secret operatives, Wei was able to discover and exploit critical weaknesses of Shu, prompting The Feathers to take action.
The story revolves the journeys and adventures of Sikong Yu (司空宇), a young man whose goal is to protect his nomadic Youxiong village (有熊村), which consists of descendants of the Yellow Emperor, Muyue (沐月), a mysterious woman claiming to be from the legendary Kingdom of Huaxu (華胥) whose distant behavior makes her seem unapproachable, Feng Yu (鳳煜), a jovial and cunning traveler with ties to royal House of Shang, and Zi Qiao (子巧), a royal high priestess of the Zi Kingdom who is betrothed to the Shang prince and possesses tremendous strength as well as an insatiable appetite.
Together, they fight to bring the nefarious plots of a mysterious group of conspirators consisting of the followers of Gong Gong (共工), the water god who had been sealed away for his violent actions, led by his second-in-command Xiang Liu (相柳), as well as Qing Yu (青榆), the avatar of the World Tree Jian Mu (建木) who has been driven by hatred for humans and vengeance against those of the Xuan-Yuan bloodline as well as his former lover Lan Ling (藍鈴), to an end before ruin befalls the world.
With his clan destroyed, the Vessel lost, the common folk imperiled, and his benefactor murdered, the young man never expected a trip down the mountain to turn into a grueling journey to defeat demons.
Fortunately, the journey did not prove lonesome and he encountered a pampered daughter of a wealthy family who joined with bandits, a famous transport guard leader, a thief titled Flying on Grass, a legendary swordsman, a fox spirit from a mystic valley, and a simple boy leaving his House consisting of only himself.
On his journey, he encounters allies including Ding Yun (丁芸), the kind and trusting daughter of a renowned doctor, Jiang Wushuang (江無雙), a bossy young girl who ran away from home and leads a group of bandits she defeated, Zuo Zhenhe (左震河), a respected and mighty guard leader for transporting goods, Qiu Qianli (裘千里), a skilled but kind-hearted thief, Leng Zhongqiu (冷仲秋), a stoic hero with a dark past, Qise (七色), a fox spirit with a feminine human form who is the elder sister to Jiutian, and Liang Cuo (梁錯), a slightly bumbling young man from a secretive family known for skills in engineering and the occult.