Main Scenario

The main story in Harvestella is organized into chapters. The Switch Demo version of Harvestella ends upon the completion of Chapter 2, or at the end of Spring Zephyr 15th, whichever comes first.

The following is an overview of the major locations, characters, bosses, and gameplay conditions the Player will encounter within each chapter.

* **Prologue** takes place over the course of Spring Zephyr 1st and functions as the game's initial tutorial section. Ein awakens in Lethe Village with amnesia, meets Cres, witnesses the falling crystal land in Lethe's north square, and helps carry the unconscious armor-clad figure found inside to Bird's Eye Brae for medical attention.
* **Chapter 1: The One from Beyond** begins the morning of Spring Zephyr 2nd. The armor-clad figure awakens, reveals her name is Aria, and says she's from the future. Over the next few days, Ein begins to establish a homestead at Bird's Eye Brae and gets to know the people of Lethe. On the morning of Spring Zephyr 6th, Aria leaves Bird's Eye Brae, telling Ein she plans to investigate the Autumn Seaslight in hopes of finding a way back to her own time. The Order of the Seaslight missionaries arrive in Lethe the same morning, and Ein learns from Cres that the Order has warned that approaching the Seaslight may be dangerous. Ein decides to follow Aria to make sure no harm has come to her.
* **Chapter 2: Omen** begins on Spring Zephyr 6th. Concerned for Aria's safety, Ein journeys to Higan Canyon to find her. In Higan Canyon, Ein meets an Omen called Dianthus. Upon learning they both seek to reach the Autumn Seaslight, the pair agree to travel together and Dianthus joins Ein's party. Along the way, they meet Unicorn. At the Seaslight, Ein and Dianthus defeat the Omen Hydrolanzer who had kidnapped Aria. Afterwards, Dianthus leaves Ein's party and Unicorn helps Ein bring Aria back to Bird's Eye Brae. That night, Juno comes to live on the farm.
* **Chapter 3: Departure** begins with Ein and Aria deciding to investigate the other three Seaslight together. Before leaving Lethe, they meet Asyl, a colleague of Cres who runs a medical clinic in Nemea Town, near the Spring Seaslight; Heine, an inventor from Shatolla, near the Summer Seaslight; and Shrika, a missionary from the Order of the Seaslight in the Holy Capital Argene, near the Winter Seaslight. The remainder of the chapter is divided into three sub-chapters which can be completed in any order.
	+ **Chapter 3A: The Heaven's Egg** sees Ein travel east to Nemea Town (via the Njord Steppe), recruit Asyl and Istina to the party, investigate the Spring Seaslight, and defeat the Dragon. Afterwards, Aeril comes to live on the farm.
	+ **Chapter 3B: The Bulla's Requiem** sees Ein travel south to Shatolla (via the Jade Forest), recruit Heine and Emo to the party, investigate the Summer Seaslight, and defeat Lorelei. Afterwards, Iris comes to live on the farm.
	+ **Chapter 3C: Cruel Automata** sees Ein travel west to the Holy Capital Argene (via the Silent Cave), recruit Brakka and Shrika to the party, investigate the Winter Seaslight, and defeat Kierkegaard. Afterwards, Shirii comes to live on the farm.
	+ **Appendix: Castle Lewis Investigation** become available after the Player has completed all three of the preceding parts of Chapter 3. Juno encourages Ein to go check on Unicorn in the Unicorn Forest. Ein, Unicorn, and a party member of the Player's choosing meet outside Castle Lewis, where Unicorn believes his princess can be found. A cutscene reveals that there is no known way to enter the Castle, nor is there any record of anyone ever having entered it before.
* **Chapter 4: Battle to Save the World** begins when Ein goes to bed the day after completing the final Seaslight investigation. Three mornings later, Aria and Ein make contact with the Omens using a device from Aria's pod, leading Geist to appear and once again abduct Aria. To rescue her, Ein and friends infiltrate the Castle of Illusion, where Dianthus (re)joins the party. Geist initiates the destruction of the Seaslight, which threatens to trigger a cataclysmic event, but his plan is aborted when he's defeated by Ein and friends. Before his personality is wiped, Geist gives Ein and Aria his Memory Chip, saying it contains coordinates that will help them find the answers they seek and save humanity.
* **Chapter 5: Abandoned Paradise** begins when Ein awakens in Abandoned Eden, having traveled there in Aria's pod with the rest of the party using the coordinates from Geist's Memory Chip. Unsure to where they have traveled and locked inside the windowless facility, the party works together to repair the controls for The Great Partition, which allows them to leave the facility and continue their search for answers. During this chapter, the time is not displayed on screen and the Player does not need to sleep. The Player is also prevented from activating any Monolite Motus in Abandoned Eden until the chapter is concluded.
* **Chapter 6: Lost World** picks up immediately after Chapter 5 ends, as Ein and the party step out of Abandoned Eden onto Panthalassa Junction on Lost Gaia. Break Time conversations cease occurring. They journey through the theme park Phantasmagoria, defeating the Cruel Automata, and make their way to the Astrum Helix Research Facility where Aria once worked. At the summit of the Facility, they defeat Macrophage. Geist returns with a new personality and reveals to Aria the truth: she is not from the future, but rather from 2,000 years in the past. Dianthus recommends the party travel next to the Orbital Cradle and find the answers to their remaining questions.
* **Chapter 7: Orbital Cradle** begins when Ein and friends arrive at the Castle of Illusion. They board the Space Elevator Vergilius and fend off an attack by the Omen Callistephus. When the Elevator is disabled, they climb through the inner maintenance framework, briefly stopping at the Seaslight Factory along the way. There, they discover the Proto-Seaslight and learn about ReGaia's creation. Upon reaching the Orbital Cradle, they learn the humans of Lost Gaia and ReGaia are two distinct subspecies of human, whom the Omens dubbed "Cains" and "Abels." Geist reveals that he can ensure humanity's survival without needing to defeat Quietus, but only one of the two populations can be saved. Because Aria is the only Cain currently awake and the only one who has spent time with Abels, it is she who must choose which group of humans to save and which to let die. Geist gives her until the day after tomorrow to decide. Aria leaves the party.
* **Chapter 8: A Noble Despair** is activated in the Player's Diary immediately after the events at the Orbital Cradle, but the chapter title does not appear on screen until two days later.
	+ **Part 1:** To clear the first part of this chapter, the Player must go to Lethe's Northern Square to have a conversation with the Mayor, go to bed, go to the deepest part of Higan Canyon to have a conversation with Dianthus, and go to bed again. During this time period, the Player cannot add any party members to their active roster, nor can they harvest crops, mine/gather resources, fish, or - if the two-day period overlaps with Quietus - enter the Karenoid. Outputs can be picked up from machines that were loaded before the chapter began, and the Player can still travel through dungeons and fight enemies alone. The conversations Ein has with the Mayor and Dianthus in Part 1 are intended to guide the Player to make the correct decision in Chapter 9.
	+ **Part 2:** Aria decides to save her own people, becoming her corrupted alter-ego, Harbinger Aria. Once again at the Orbital Cradle, the party faces Callistephus before eventually reaching Harbinger Aria. After the Player defeats her in combat, a cutscene ensues where she recovers and knocks Ein unconscious. Ein is transported inside Aria's unconscious mind where he or she eventually finds Aria suspended in chains. Her heart is closed to others' words, but when Ein pulls out Aria's Diary, Aria's own words allow Ein to reach her. Ein persuades Aria to accept help, then uses Proshades to destroy the chains that bind her. Back at the Orbital Cradle, Aria orders the Proto's descent stopped.
* **Chapter 9: What Falls from the Heavens** begins immediately after the conclusion of Chapter 8. Geist instructs Ein to choose the Cains or the Abels. To continue playing, the Player must not agree when asked to confirm that either the Cains or Abels shall be sacrificed. If the Player does agree to exterminate one group, the game ends. Otherwise, when Geist is convinced that Ein's will is resolute he relents. Just then, the Proto-Seaslight activates its own descent. Aria races to the Proto and Ein follows. The pair succeed in changing the Proto's trajectory, but Aria insists on staying behind to dismantle the Proto as it falls. Ein escapes in a pod and is collected by Dianthus's airship, and the party successfully mount a rescue for Aria. The Proto's crash site in the northern sea becomes accessible on the World Map.
* **Epilogue: The Story of Your World** begins immediately after the conclusion of Chapter 9. Break Time conversations resume occurring. At the Castle of Illusion, Ein and friends gain access to Geist's Quietus research and use it to develop a plan. They use the residual energy of the Proto to shield the continent with the Heaven's Shell while they briefly energize the Seaslight, which opens a path to the planet's center, the Stella Nursery. Inside, they're guided by the Girl to the source of Quietus: The Stella Child, Gaia. The party first defeat her Planetary Defense System in the Nursery, then pursue her when she flees to the center of the planet and face her in her monstrous form. After the Player defeats her in combat a cutscene ensues where Ein gains strength from his/her friends and together they succeed in defeating Gaia for good, bringing an end to Quietus. Afterwards, Ein goes to the Orbital Cradle and the Girl offers to reveal the truth of Ein's identity
* The **Ending** begins immediately after the conclusion of the Epilogue. Happening after an unknown point of time, Ein receives letters from his/her friends revealing their current situations. The party is last seen all together on Dianthus's airship, heading for Lost Gaia to investigate an unregistered Eden Shelter that was recently discovered.