Overview Sets Album Companions Event Log Achievements
Sisters of the Sea is the 34rd main story that has been released.
A mermaid princess makes a secret deal out of desperation. When her fishtail is transformed into human legs, her journey to save her beloved sister begins.
Difficulty: 
Required Clothing[]
The following is a list of the clothing required in some stages of the story, and also any craftable clothing that is needed to make it. Required clothing cannot be borrowed, and cannot be used to craft new clothing.
| Required Clothing | Requires |
|---|---|
 Ocean Run |
No other craftable clothing |
 Flying Droplets |
No other craftable clothing |
 Forest Precipice |
No other craftable clothing |
 Soft White Sand |
No other craftable clothing |
 Starry Embellishment |
No other craftable clothing |
 Moonlit Waters |
No other craftable clothing |
 Marine Goddess |
 Serene Call |
 Ode to Spring |
 Peak Success |
 Dazzling Sea Stars |
 Silvery Ocean Moon |
 Dreaming of Home |
Soft White Sand |
Chapter 1[]
1-1 A Watery Deal[]
Ondine witnesses her younger sister, Marin, turn into sea foam in the azmarine mirror. In order to save her sister, she makes a secret deal with the Sea Wizard.
Style: 
Gifts: Pulse of Life, Cliff Ladder
Event Logs: Azmarine, Verdant continent, Atlan Kingdom, Mermaid Pearl
Rewards: 3,000 
, 600 
, 3 
, 1 Random Gift Material 
, 1 Random Clothing Material 
, Impatient Sunrise, Blueprint: Marine Reunion
1-2 The Atlan Kingdom[]
After a chance encounter and a journey to the palace, is Ondine finally on the path to save her sister?
Style: 
Event Logs: Sacred Pact
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Chasing Waves, Blueprint: Serene Call
1-3 A Moonlit Dance[]
What kind of night awaits Ondine at the ball she is suddenly invited to?
Style: 
Event Logs: Evanstor Kingdom
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Distant Lighthouse, Blueprint: Peak Success
1-4 The Sacred Hall[]
The familiarity Ondine sensed on the wind, and the mysterious princess inside the magnificent hall... Puzzling questions are multiplying within Ondine's mind.
Style: 
Event Logs: Epic of Azurnon
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Strolling on Shore
1-5 In the Vast Palace[]
The task before her, the strange prince, and the unexplained Mermaid Pearl merge to form a complicated riddle. Ondine makes up her mind to learn more.
Style: 
Requirements: Elias Goodwill Lv. 2
Event Logs: Council
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Strolling on Shore
1-6 A Beloved Pet[]
The bustling market lets Ondine forget her troubles for a while. But then she runs into someone she never expected to see.
Style:
Event Logs: Verdan smoked meat, Pact Anchor
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Meandering Coast
1-7 Linore[]
After reassuring Sheldon, Ondine sneaks into the Sacred Hall to look for Linore. Surprisingly, the trip is not made in vain.
Style: No dress up component
Event Logs: Brinefin Dockyard
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
1-8 Dockyard Incident[]
When Ondine hears about an accident at the Brinefin Dockyard, she heads there to see if Prince Lucas is okay. She needs him alive to complete her deal with the Sea Wizard.
Style:
Requirements: Linore Goodwill Lv. 2
Event Logs: Royal Navigator, Azmarine compass
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Starry Wishes
1-9 The Siblings[]
After returning from the dock, Ondine begins looking into Lucas’ life. To her surprise, Lucas has a bitter secret behind his ambitions.
Style:
Requirements: Ocean Run
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Flying Droplets
1-10 Alternatives[]
Everything seems to indicate that the Sea Wizard is not to be trusted. Ondine decides to look for other ways to save her sister.
Style:
Requirements: : Lucas Goodwill Lv. 2
Event Logs: Azurnon's Trident
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Forest Precipice
1-11 Mermaid Legends[]
For the first time, Ondine finally understands how much humans detest merpeople. What went wrong in the past?
Style: No dress up component
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
1-12 Royal Secrets[]
Ondine is deeply troubled by the differences between the historical records of humans versus that of merpeople. How did the differences arise?
Style: No dress up component
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
Chapter 2[]
2-1 The Pact Anchor[]
Ondine obtains key information from Sheldon. To save her sister, perhaps she has to start from the place where Marin turned to sea foam.
Style:
Requirements: : Flying Droplets
Event Logs: Mermaid's Reef, Cape Covenant
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Ocean Night
2-2 Ritual Ceremony[]
Ondine is invited to discuss the upcoming ritual ceremony. Linore tells her the truth about the conch shells near the Pact Anchor.
Style:
Requirements: Elias Goodwill Lv. 4, Linore Goodwill Lv. 4
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Guiding Stars
2-3 Truth About Marin[]
Ondine is tired of putting up a front for Lucas. After the two of them have a good talk, Ondine finally learns why Marin turned into sea foam.
Style:
Requirements: : Forest Precipice
Event Logs: Mermaid's Reef, Cape Covenant
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Eternal Yearning
2-4 Mutual Suspicions[]
Ondine has a feeling that everyone in the royal palace has secrets. Faced with Lucas' offer, what will Ondine decide?
Style:
Requirements: Lucas Goodwill Lv. 4, Linore Goodwill Lv. 4
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Village Home
2-5 Farewell, Kai[]
Ondine sees Kai off as he sets out to sea. She is deeply touched by Kai’s feelings for Marin.
Style:
Requirements: Soft White Sand
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Sea Spring
2-6 Secrets and Wishes[]
Ondine responds to the Sea Wizard's question with lies. She has questions for him too, but she's interrupted by someone unexpected.
Style:
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Flowers and Fish
2-7 Mainland Alliances[]
Ondine stumbles upon the Council’s errant ways. She comforts others, but has no idea she is about to run into danger.
Style:
Requirements: Starry Embellishment, Elias Goodwill Lv. 5, Lucas Goodwill Lv. 5
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Dreaming of Home
2-8 Back to the Ocean[]
In order to help Sylph look for her beloved, Ondine returns to the ocean. She fails to get the answers she's looking for, and the Sea Wizard asks her about her progress...
Style: No dress up component
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
2-9 The Outsiders[]
Ondine returns to the shore unhappily, and falls into the Council's trap. What hers her even more is the identity of the trap's mastermind...
Style:
Requirements: : Moonlit Waters
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Mountain Painting
2-10 The Golden Book[]
After getting Ondine captured, Elias risks his life to help her escape. The unconscious Elias in Ondine's arms suddenly feels like a stranger to her...
Style:
Requirements: : Elias Goodwill Lv. 6
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Marine Goddess
2-11 Calm Before the Storm[]
Ondine and Linore decide to expose the Council's plot to manipulate the people. But the Council strikes first, and everything spirals out of control...
Style:
Requirements: : Marine Goddess, Linore Goodwill Lv. 5
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Dream Call
2-12 The Festival[]
Amid the chaos, the Sea Wizard arrives. The festival does not go as planned...
Style: No dress up component
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
2-13 Lethal Betrayal[]
Ondine returns from the sea, but is captured by the Council. She is puzzled by Lucas' attitude towards her...
Style:
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Ode to Spring
2-14 Faith and Power[]
Ondine fines herself embroiled in a huge political conflict on land. Meanwhile, she tells Lucas how to nullify the Sacred Pact.
Style:
Requirements: : Ode to Spring, Lucas Goodwill Lv. 6
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Dazzling Sea Stars
2-15 Going All Out[]
Ondine takes the secret weapon from Sheldon. As she feels the icy surface with her hands, she makes a decision...
Style:
Requirements: : Dazzling Sea Stars, Linore Goodwill Lv. 5
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Ocean Kiss
2-16 Love and Redemption[]
Sylph takes Lucas' place as the royal host of the festival. The Sea Wizard seems to have gone mad, as if he wants everyone to die together...
Style: No dress up component
Rewards: 3,000 , 600 , 1 , 1 Random Gift Material , 1 Random Clothing Material
2-17 Treacherous Waters[]
Ondine returns to shore, but is attacked by the Council right away. Sheldon helps her escape...
Style:
Requirements: : Dreaming of Home, Linore Goodwill Lv. 6
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Turbulent Undercurrents
2-18 Sisters of the Sea[]
Ondine chases after the eavesdropper, and ends up near the Abyssal Keep...
Style:
Requirements: : Elias Goodwill Lv. 7, Lucas Goodwill Lv. 7
Rewards: 3,000 , 600 , 3 , 1 Random Gift Material , 1 Random Clothing Material , Blueprint: Starlit Waves
Endings[]
Sisters of the Sea story has 3 major and 9 minor possible endings.
For a guide on how to obtain the endings, please see Sisters of the Sea Endings.
Stories
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Sisters of the Sea
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Chapter 1
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Chapter 2
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Prologue
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Main Stories
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Queen Marie • Magic Lamp • Gotham Memoirs • Swan Lake • Helen of Sparta • Romy and Julius • Shadows of London • Little Women • Phantom of the Opera • Taishō Adventures • Saga of Viera • Tang Dynasty Hunter • Si-woo's Sight • Princess Sissi • White Snake • Dancing On Ice • Have You Seen Claudia? • Whispers of the Rain • Cleopatra • The Sacred Beast • Ancient Dreams • Ghost Manor • Kingdom of Beasts • House of Horrors • Spring Sonata • Trendy Times • Gourmet's Journey • Miss Kitty's Antiques • Hela's Compass • Golden Age • The Perfect Storm • Code: Whalefall • Moving Mountains • Sisters of the Sea • The Apothecary • Lunar Legend • The Moravia Express • Dominic's Disappearance • Heartwood Mysteries • Mysteries of Zentico • Showdown in Glitter Rise • Magpie Tower • Infinite Shimmer • The Underground City: Stirring Shadows • Twilight's Crown • A Cat and Dog Affair • Mirror of Masks
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Traveler's Notes
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