In an urgent mission, Kiana, Mei, and Bronya captured Selene, an unmanned Anti-Entropy battleship.
Affected by the energy in its engine, Bronya's and Kiana's bodies experienced strange conditions one after another. An impossible voice that claimed to be the 2nd Herrscher spoke in Kiana's dream:
"Fear not. I will appear time and again in your worst nightmares."
"The day you are powerless to resist will come..."

Anti-Entropy Invasion
Moon Shadow

Curious, Kiana followed Theresa into the simulated battlefield of the 2nd Eruption. There, she met her parents and defeated the 2nd Herrscher with them.
However, it was all a trick of the 2nd Herrscher Sirin: It was a phantom she created from Kiana's longing for her parents.
Otto, the Overseer of Schicksal, suddenly made his move. He ordered Fu Hua to bring Kiana to Schicksal HQ by force...

Second Eruption

The awakening of the Herrscher of the Void sent the world into a Great Eruption.
In order to locate Kiana, both Schicksal and Anti-Entropy acted.
Meanwhile, Theresa and company received a message from Cocolia, an Anti-Entropy Enforcer: Schicksal had sent out troops to seize the Gem of Desire and was in dire need of support.
The Hyperion crew was faced with a difficult decision...

Azure Waters

After the Great Eruption, disaster swept across the land and darkness enveloped humanity.
Kiana, who wandered in Arc City to battle Honkai alone, made peace with Fu Hua and learned to subdue the power of the Void temporarily.
Only those were far from enough. As soon as Kiana showed weakness, the Herrscher persona would resurface.
Somewhere dark and damp, World Serpent's hunt had just begun...

World Serpent
London Holiday

When Mei found Kiana, World Serpent was about to conduct a large-scale stigma experiment by engulfing the city in a Honkai eruption.
By utilizing the power of the Void, Kiana pushed the engine into the night sky far above the city.
World Serpent's plot quietly dissipated in the flash. The unsung hero who saved the city, however, was falling from the sky helplessly.
Mei dashed toward her with all her power, yet was still a step too late.

Second Key
Escape from Nagazora

The Herrscher core was corrupting Kiana physically and the Honkai phenomena in Nagazora was worsening.
In order to protect Kiana and Nagazora, Mei decided to face her fate and become the true Herrscher of Thunder.
Having accepted Kevin's terms, she split up with her friends and join World Serpent.
A new Herrscher would soon befall the world, and tip its balance once more.

In the Battle of Schicksal, Fu Hua transferred her sentience into a feather of Fenghuang Down, rendering her body an empty shell.
Fu Hua had yet to realize that, in the boundless darkness, a new sentience was forming in that shell...

Divine Key
Springfest
Blade of the Empyrean

The appearance of the Herrscher of Sentience forced Anti-Entropy, Schicksal, and World Serpent to call a truce tacitly.
After leaving the Sea of Quanta, Seele and Bronya followed Anti-Entropy doctors to the Salt Lake base to start a new life.
... Unbeknownst to them, an evil string had reared its head.

Back in Nagazora, Otto and Kevin had struck a deal: He would aid Kevin's Project Stigma should Kevin hand him the 2nd Divine Key: Cosmic Juggernaut.
The successful test linking of the bubble universe and the Imaginary Tree marked the fruition of the Overseer's lifelong plan.
The die was cast. The dusty wheels of fortune have begun turning once again.

Elan Palatinus

To unveil the Will of Honkai's true face, Mei went to a secret site where the World Serpent agents took trials: Elysian Realm.
She met the Thirteen Flame-Chasers and followed them to the deepest corner of this database, where all secrets converged.

The previous story can be viewed in Elysian Realm. You're recommended to clear it before playing this chapter~

Mei continued to look for the truth in Elysia's memory space, a strange place named "Elysium Everlasting".
As before, her journey was full of thistles and thorns: Flame-Chasers were disappearing one after another and there was no end to all their suspicions. At last, everything pointed to one uninvited guest—Herrscher of Corruption. To stop its corruption, Mei, along with the other Flame-Chasers, used her own memories to recreate a memory replica of Elysia and found out the greatest secret among the Flame-Chasers—everything about the 13th Herrscher.
At the journey's end, with the combined powers of the Thirteen Flame-Chasers, the Elysian Realm vanished with the Herrscher of Corruption in it. Mei, who left beforehand under Elysia's protection, finally bade the Pioneers' past farewell while walking towards the future solely made for the successor.

Kevin's Project Stigma cast humanity into a dream. Kiana, Mei, and Bronya reunited on the moon to confront Finality. Bronya embraced the legacy of Herrscher of Truth; Mei accepted the blessing from Herrscher of Origin; all together the group broke the aggregation of human dreams. After absorbing the Herrscher authority in the Cocoon of Finality, Kiana became the Herrscher of Finality.
In the end, they defeated Kevin who also wielded the authority of Finality with concerted efforts. Kiana stayed on the moon to watch over the Earth and humanity.
Half a year later, in the Nagazora recovering from the catastrophe, Seele and Susannah were assigned to an investigation task.

After the Great Eruption, Seele and her friends got tangled up in a twin bubble universe, which was where Sa, the Abyss of the Sea of Quanta was siphoning energy from.
To defend against Sa, they sustained heavy damage, and their partner Vita also turned out to be Sa's representative.
At the critical moment, Seele took advantage of the bubble universe's rules and became the Herrscher of Rebirth. After fighting Seele, Vita cut off her connection with Sa and regained freedom. Life also came back to the bubble universe with everyone's hard work.
Meanwhile, Fu Hua went missing and came across an old friend...

Kevin's Project Stigma cast humanity into a dream. Kiana, Mei, and Bronya reunited on the moon to confront Finality. Bronya embraced the legacy of Herrscher of Truth; Mei accepted the blessing from Herrscher of Origin; all together the group broke the aggregation of human dreams. After absorbing the Herrscher authority in the Cocoon of Finality, Kiana became the Herrscher of Finality.
In the end, they defeated Kevin who also wielded the authority of Finality with concerted efforts. Kiana stayed on the moon to watch over the Earth and humanity.
Half a year later, Seele and her friends were fighting Sa, the Abyss of the Sea of Quanta in a certain bubble universe. At the critical moment, Seele became the Herrscher of Rebirth and defeated Sa's representative Vita, who also thus regained her freedom. Afterwards, Fu Hua reunited with Griseo in a city on the edge of the solar system. She fought Sa in her Garuda form, while Vita seized the opportunity to take over all of Sa's authorities.
After a few years of peace, two new members of Schicksal were sent to Mars for special training...

Valkyries Coralie and Helia crossed paths with the data life Dreamseeker during an investigative operation on Mars. In the course of their mission, a Martian crisis gradually surfaced, where the Seven Shus of Langqiu fought the shadow calamity using the Astral Ring and their own supernatural powers. Thanks to Dreamseeker's precognitive dream, the Seven Shus channeled all their power into Songque, ultimately overcoming Perception, the Will of Shadow, and putting an end to shadow calamity.
Meanwhile, Kiana succumbed to a deep sleep on the moon. Chasing the only clues they have, the group decided to continue pursuing the secret behind Mars. With the help of Vita, Dreamseeker embarked on a new journey to unravel the mysteries.

Dreamseeker, upon re-entering the system, was overcome with the urge to find Senadina. Vita suspected that Dreamseeker was under the influence of some force in the system. Faced with many mysteries, Theresa decided to join their quest. The three re-entered the system, but found themselves in a peaceful world without the shadow calamity, and the familiar Seven Shus all led ordinary lives. Therefore, Vita instigated a great panic in Oxia, and in the midst of chaos, a face similar to that of Dreamseeker slowly emerged.