Chapter Summaries

Hua Ling, an adorable anime-loving boy, went to a convention with his wealthy best friend Gao Fushuai, who had secretly prepared a Theresa cosplay outfit for him. The chapter ended with Hua Ling reluctantly considering wearing the outfit after discovering Gao Fushuai’s prank.

• Hua Ling collected his student grant and ran into Gao Fushuai, who invited him to a convention and teased him about his appearance.
• Gao Fushuai brought Hua Ling to a convention he had arranged at a nearby gymnasium, where attendees greeted Hua Ling excitedly.
• Gao Fushuai led Hua Ling to a private dressing room, claiming he had prepared an impressive outfit for him.
• Hua Ling found Theresa’s Celestial Hymn cosplay outfit in the wardrobe and angrily accused Gao Fushuai of tricking him with women’s clothing.
• Gao Fushuai pleaded with Hua Ling to put on the outfit, and Hua Ling hesitated before deciding he might as well wear it.

Hua Ling became a convincing Theresa cosplayer and, alongside Gao Fushuai as Otto, turned their playful chase at a convention into a performance for a cheering crowd. After Otto and Theresa sang their character songs, the audience’s excitement grew.

• Gao Fushuai and makeup artists transformed Hua Ling into Theresa, and Hua Ling impressed them by imitating Theresa’s voice.
• Gao Fushuai gave Hua Ling a heavy Plastic Judas prop, then appeared as Otto and teased her by calling her his granddaughter.
• Hua Ling chased Otto with Judas onto an empty stage, where a crowd gathered and cheered for them.
• Gao Fushuai suggested they perform songs for the crowd, and Hua Ling agreed.
• Otto sang “Regression,” then Hua Ling sang “The Day the Stars Vanish” in Theresa’s voice, exciting the audience.

Hua Ling and Gao Fushuai were swept from a cosplay convention into the Star Rail World by the Dull Goose Itasha. They woke in an air bubble in space, realizing they had transmigrated and needed to find a way to survive.

• Hua Ling and Gao Fushuai sang Honkai songs at the convention and won the singing competition as Otto and Theresa cosplayers.
• Hua Ling and Gao Fushuai watched cosplayers perform a comedic Dante and Vergil scene before the crowd dispersed.
• The Dull Goose Itasha struck Hua Ling and Gao Fushuai, sending them through a void while Durandal shouted about damn heterosexuals.
• Hua Ling and Gao Fushuai woke in an air bubble in the vacuum of the Star Rail World and realized they had transmigrated.
• Gao Fushuai told Hua Ling that he had been adopted and that his strict family had made him miserable, then resolved to focus on survival.

Immortal Dragon Lin Qin rescued Hua Ling and Gao Fushuai, granted their wishes, and transformed Hua Ling into Theresa while turning Gao Fushuai into a bound system. As the Astral Express approached, the two prepared to begin their new lives, with Theresa facing a mission to join the train.

• Hua Ling and Gao Fushuai saw a gigantic Yinglong approach, and Immortal Dragon Lin Qin offered to grant each of them a wish in exchange for entertainment.
• Hua Ling wished for dumplings, while Gao Fushuai requested a system; Lin Qin transformed Hua Ling into Theresa and granted her the Oath of Judah, a Core of the Herrscher of Binding, a Stone Mask, and the Path of Immortality.
• Lin Qin turned Gao Fushuai into the Homu System, bound him to Theresa, and left a Vishnu Hyper-Mutation Factor sealed within the system.
• Theresa discovered her transformed body and panicked when Gao Fushuai seemed to have vanished, until the Homu System contacted her and revealed that her first mission was to join the Astral Express.
• Theresa accepted her new name, and a black steam train emerged through space nearby.

The Astral Express crew encountered a strange sphere drifting through space, and Welt recognized the unconscious woman inside as Theresa Apocalypse from his home world. After Theresa awoke, she claimed a black hole had pulled her into space, while Welt revealed her age and she angrily insisted she was fourteen.

• Pam prepared the Express crew to visit the Space Station for supplies and repairs, but the crew spotted a translucent sphere approaching the train.
• Welt recognized something about the sphere through Dan Heng’s telescope, then captured it outside the train with the Star of Eden.
• The sphere burst open aboard the Express, revealing an unconscious Theresa Apocalypse, whom Welt identified as an old acquaintance.
• Theresa awoke and asked Welt where she was and where Kiana and the others were; she said a black hole had suddenly sucked her in.
• Welt told the crew that Theresa was over forty, and Theresa angrily insisted she was only fourteen.

Theresa proved her identity to Welt and was welcomed aboard the Astral Express, where Himeko punished Welt and the others with her concentrated coffee. Theresa discovered that Himeko’s coffee tasted sweet to her, leaving her ready to enjoy the rest of her time with the crew.

• Welt asked Theresa to deploy Oath of Judah, confirmed she was genuine, and apologized for suspecting her.
• Theresa received a mission reward after joining the Astral Express and happily embraced Himeko, whom she had never met before.
• Himeko comforted Theresa and made Welt drink a cup of her concentrated coffee as punishment for his suspicion.
• Himeko made March 7th and Dan Heng drink the remaining coffee, then offered some to Theresa as a joining ceremony.
• Theresa found that Himeko’s bitter coffee tasted sweet to her and began sipping it without fear.

Welt and the Astral Express crew welcomed Theresa aboard and learned she wanted to find a way home. After they arrived at the Space Station and found it crawling with Antimatter Legion soldiers, Theresa swallowed the Vishnu Hyper-Mutation Factor pill as the others fought.

• Welt returned to the train hall and found Theresa calmly drinking Himeko’s ultra-concentrated coffee.
• Theresa introduced herself by name, thanked Welt for helping her board the train, and asked to travel with the crew until she could find her way home.
• Pam warned the crew that something was wrong at the Space Station, and the train soon docked there.
• Welt and the others disembarked and found Antimatter Legion soldiers roaming the station, so he assigned the crew to protect Theresa while Himeko and he cleared the way.
• Theresa said she needed time to adjust to the changed Destruction Energy in her body, then used the Space Station System to take the Vishnu Hyper-Mutation Factor pill stored in Judas.

Theresa awakened the Hypervariable Factor and used the Oath of Judah to devour the Antimatter Legion, replenishing her energy. She joined March 7th and Dan Heng to rescue Arlan and the Space Station guards, using Hunting Mode to destroy more enemies.

• The Hypervariable Factor activated in Theresa’s body, and its hunger drove her to attack the Antimatter Legion with the Oath of Judah’s Heavenly Judgment.
• Theresa’s sword formation shredded and devoured the Antimatter Legion, while Welt explained the Oath of Judah’s origins and capabilities.
• After Theresa said she was full, Welt split the group into teams to search for Space Station survivors.
• March 7th and Dan Heng helped Arlan and the guards fight off the Antimatter Legion.
• Theresa deployed the Oath of Judah’s Hunting Mode and destroyed the enemies surrounding Arlan and the guards.

Theresa, March 7th, and Dan Heng found Stelle unconscious behind a battered door and brought her with them after she woke with no memories. The group reunited with Asta, Welt, and Himeko, while Stelle felt drawn to Theresa and suspected they shared a secret.

• Theresa, March 7th, and Dan Heng found Stelle inside a sealed compartment and Theresa smashed open the door, waking her.
• Stelle said she remembered only her name, and March 7th and Theresa noticed her attraction to Theresa’s scent.
• Stelle picked up the Baseball Bat Curio and introduced herself to March 7th, Dan Heng, and Theresa.
• Dan Heng led the group toward the other compartments, and they joined Asta, Welt, and Himeko.

Asta welcomed the Astral Express crew and met Stelle and Theresa, while Stelle’s identity remained unclear. Herta arrived and revealed that Stelle had been transformed from the Stellar Core she had been studying, then questioned Theresa about her own identity.

• Asta mistook Theresa for a child and cuddled her until Arlan, Himeko, and Welt warned her that Theresa could defend herself with a heavy cross.
• Theresa insisted she was not a child, then bit Welt’s hand after he nearly revealed her age.
• Dan Heng questioned Stelle, who said she remembered only her name, while Himeko introduced Theresa as a Stellaron Hunter from the Astral Express.
• Herta arrived and explained that the Stellar Core specimen she had stored had become Stelle.
• March 7th reacted with surprise to Stelle’s origin, and Herta asked Theresa to introduce herself.
• Theresa told Herta that she had recently joined the Astral Express as a Stellaron Hunter and pointed to Welt and Himeko as confirmation.

Theresa and Welt joined the Space Station's defenders when the Doomsday Beast attacked, and Herta promised to waive the Astral Express's repair and supply costs. Theresa began fighting the beast while Welt shielded the others, and she activated the Oath of Judah's Divine Blessing Barrier.

• Theresa and Herta exchanged compliments as Herta thanked the Stellaron Hunters for helping save the Space Station and offered to waive the Astral Express's repair costs.
• The Space Station alarmed everyone as the Doomsday Beast attacked its protective barrier, prompting Arlan to order an evacuation.
• Theresa and Welt volunteered to fight, with Theresa taking on the beast and Welt preparing a shield against the Divine Blessing Barrier.
• Stelle, March 7th, Himeko, and Dan Heng stayed to fight alongside Theresa, while Herta encouraged them not to hold back.
• Theresa struck the Doomsday Beast's claw with Judas, then deployed the Oath of Judah's Divine Blessing Barrier as thirteen spears shot into the void.

Theresa used the Oath of Judah to defeat the Doomsday Beast, while Stelle was exposed to Nanook’s destructive power and was knocked unconscious by Welt. After recovering, Theresa and Stelle received rewards from Herta and Asta, and the group prepared to discuss Theresa’s weapon.

• Theresa activated the Oath of Judah’s Divine Blessing Barrier and used Heavenly Judgment to crush the Doomsday Beast, though its final attack was blocked by Stelle.
• Stelle’s Stellar Core began reacting after Nanook appeared to her, but Welt knocked her unconscious and stopped the destructive fluctuations.
• The defeated Doomsday Beast replenished Theresa with energy, and Himeko caught her as she collapsed from exhaustion.
• After Theresa and Stelle rested overnight, Herta told them the Antimatter Legion had retreated and awarded them Credit Points and terminals.
• Asta asked Theresa about the Oath of Judah, and Theresa checked with Welt before agreeing to explain it.

Theresa and Welt explained the terrifying Honkai threats their homeland had endured and warned Herta that researching Honkai-related objects could trigger a catastrophe across the galaxy. Herta agreed to stop investigating Oath of Judah, then proposed using Stelle and Theresa as subjects in a Simulated Universe experiment to see whether it would attract an Aeon.

• Theresa told the Express Crew that she had come from a distant world and described Oath of Judah as a Divine Key from her homeland.
• Theresa and Welt explained the Herrschers, Honkai Will, and Honkai Beasts, including the enormous Judgement-type Chi You.
• Herta asked whether anyone could use Oath of Judah, and Theresa warned that ordinary people could not wield it safely.
• Welt and Theresa warned Herta that researching Honkai could bring a galaxy-wide outbreak, so Herta agreed not to take that risk.
• Herta proposed testing Stelle and Theresa in a Simulated Universe simulation to find out whether their participation would attract an Aeon.

Herta brought Stelle and Theresa into the Simulated Universe to test whether their unusual natures would attract simulated Aeons. Stelle encountered Qlipoth and Fuli, while Theresa was unexpectedly drawn into the Masked Fools’ tavern and left surrounded by masks.

• Herta explained the Simulated Universe’s seven Paths and sent Stelle in first, disguising her as the deceased Aeon Aqevili because of her Stellar Core.
• Stelle encountered Qlipoth and Fuli, but Fuli answered her prepared question with incomprehensible words before withdrawing.
• The Space Station System sealed Theresa’s foreign memories, and Theresa entered the Simulated Universe, where Herta could not contact her.
• Sparkle welcomed Theresa to the Masked Fool tavern and offered her a strange drink, which Theresa tricked Sparkle into drinking instead.
• Theresa kicked off Sparkle’s fox mask and frantically removed her other masks, causing the Masked Fools and tavern to disappear until she was left atop a heap of masks.

Theresa encountered Aha in a strange void, where the Aeon of Joy made her an Envoy and altered her appearance and behavior. She awoke on the Space Station with the crew worried about her, though she could not remember what had happened.

• Theresa met Aha, who introduced himself as the Aeon of Joy and asked what she thought he was.
• Theresa called Aha a bold demon rather than a human, amusing him and prompting him to dress her in a revealing outfit and free her from her usual restraint.
• Aha sensed Theresa's immortality and hidden joy, made her an Envoy of Joy, and disappeared after merging a mask into her.
• Theresa returned to the Space Station, where Herta and the others saw her brainwaves settle and gathered around her when she woke.
• Herta suspected Aha had influenced Theresa, while March 7th and Stelle admitted that Theresa's strange expression had made them want to laugh.

Theresa was struck by Aha’s Power of Joy, but her Immortal Power transformed it and preserved her personality. She emerged with vastly increased strength and a changed Stone Mask, while revealing the mysterious power’s connection to an Immortal Dragon.

• Herta, Himeko, and Welt worried that Theresa had been influenced by an Aeon, but her wise expression made everyone laugh.
• A gigantic mask appeared outside the Space Station and spread Aha’s Power of Joy, making the group laugh uncontrollably.
• Aha’s power flowed into Theresa, and the Herta Space Station System tried to summon a Stone Mask to shield her.
• Theresa transformed into a witch-like form, and her Immortal Power assimilated the Power of Joy, increasing her strength more than a hundredfold.
• Theresa told the group that a three-paired-wing rainbow dragon had given her the Immortal Power, and Welt challenged Herta’s claim that the Immortal Dragon had died.
• Theresa revealed that Aha’s mask had fused with the Stone Mask, but she refused to wear it because she feared what would happen.

Theresa and the others said goodbye to Herta and Asta after Herta gifted the Express Crew Stellar Jade and gave Theresa a Herta automaton. They returned to the repaired Astral Express, where March 7th told Pom-Pom they had enough fuel for one hundred warps.

• Theresa explained that the mask was a manifestation of a Masked Fool's power and could only be touched by other Masked Fools.
• Herta gifted the Express Crew sixteen thousand Stellar Jade, and Stelle chose to travel with the Stellaron Hunters.
• Theresa asked Herta for a Puppet, and Herta gave her the automaton in her office while refusing Stelle and March 7th.
• Theresa and the Stellaron Hunters left the Space Station with the automaton and returned to the repaired Astral Express.
• March 7th told Pom-Pom that Herta had gifted them enough Stellar Jade for one hundred warps.

The Astral Express crew welcomed Theresa and learned that she had become an Envoy of Joy, frightening Conductor Pom-Pom with the news. Theresa also discovered that Joy Points could buy unusual items, including a Green Hat and a Crystal Brick, and considered how the hat might suit Stelle.

• Pam celebrated the Stellar Jades Himeko gave it and questioned Theresa about the Herta automaton she carried.
• Welt explained the Space Station invasion, and Himeko told Pam that Stelle was a Stellaron Essence less than two days old.
• Theresa revealed that Aha had made her an Envoy of Joy, causing Pam to hide behind Welt in fear that she would destroy the train.
• Theresa reassured Pam that her Immortal Power kept her from acting recklessly, and the crew explained that Paths persisted even after their Aeons fell.
• The Herta Space Station System unlocked Joy Points and offered a mission to defeat or kill Cocolia Rand, with a Core of the Herrscher of Binding as its reward.
• Theresa learned Joy Points could purchase a Green Hat or Crystal Brick and thought the Green Hat would suit Stelle.

Theresa agreed to Pam’s rules and decided not to wear the mask unless absolutely necessary, while the Astral Express crew prepared to warp to Jarilo-VI. After March 7th showed Theresa her new room, the girls activated Herta’s automaton and discovered its sensual mode was locked.

• Pam made Theresa agree not to prank passengers, misuse train funds, or harm the train.
• Theresa said she would avoid wearing the mask unless a critical moment forced her to, and Welt supported her decision.
• Pam sent everyone to rest before the train’s warp to Jarilo-VI, while Welt stopped Stelle and March 7th from examining Herta’s Puppet in the train hall.
• March 7th took Theresa and Stelle to Theresa’s new room and suggested they share its large bed.
• Theresa entered the passkey for Herta’s automaton, then selected its locked Sensual Mode, causing it to switch to Housekeeping Mode.

Theresa, March 7th, Stelle, and Dan Heng prepared for a Trailblaze expedition after spending the night aboard the train. They arrived at frozen Jarilo-VI, where a Stellar Core had extended the train’s stop indefinitely, and teleported down to explore.

• Theresa, March 7th, and Stelle bathed together, then rested aboard the train while the Herta automaton helped Pom-Pom clean up.
• Pam served breakfast, and Welt assigned Theresa to lead the expedition with Dan Heng, March 7th, and Stelle.
• The Express warped toward Jarilo-VI, but Pam detected Stellar Core fluctuations and announced that the stop had been extended indefinitely.
• Dan Heng explained that Jarilo-VI had once been lush before it became frozen, and Welt warned the group to stay together and contact the train if needed.
• Pam teleported Theresa, March 7th, Stelle, and Dan Heng to Jarilo-VI; afterward, Welt told Himeko that Theresa was powerful and capable of looking after them.