SailorStar9: Well, since I posted this writing prompt on the 'Writing Prompts' sub-server on Alberose Wonderland Discord server, I decided to get my ass down to start this new Sailor Moon/Genshin Impact crossover.

Fic summary: An heir and a spare: that is one of the fundamental golden rules of any royal and noble families since ancient times and the Silver Millennium was no exception. Sive (Sucrose) was Sailor Mercury's younger sister and was later elevated to Crown Princess after Amity was bestowed the Sailor Mercury title. Finnbar (Albedo) had been assigned as Sive's personal bodyguard since she was six and Sive ended up falling in love with him.

Pairings: Very Slow-burn Albedo/Sucrose, Zhongli/Amity

Additional note: In this fic, Sucrose is named Sive, the Irish Gaelic word for 'sweet'. Albedo is named Finnbar, the Irish Gaelic word for 'fair-headed' (let's just say his father isn't very creative about names), Zhongli (Amity's personal bodyguard) is named Garrett, the Irish Gaelic word for 'spear ruler'.

Disclaimers: Genshin Impact and Sailor Moon belong to miHoYo and Takeuchi Naoko-sensei respectively. Me, on the other hand, own absolutely nothing, except the plot, I hope.

Prologue: The Second Princess, Sive


Over ten millennia ago before present times...

The first-born Princess of Mercury turned to the Mariner Castle's delivery chambers for the umpteenth time, her mother, Queen Mercurine, had been in the maternity ward for the last thirteen hours.

One final pained scream erupted from the maternity ward before an infant's wail sounded from within, indicating that the Queen had successfully given birth.

"King, Princess." the head matron shot out from the delivery ward and knelt before King Hermes and Princess Amity. "The Queen has given birth to a second Princess!"

"Mother." the four-year-old Amity reached for her mother's hands before turning to the honey-eyed infant in the baby cot. "Is she my little sister?"

"Yes, dear." Mercurine whispered.

"Sive." Hermes spoke. "The second Princess of Mercury, Princess Sive."

"Understood, Your Majesty." the registration scribe on-site responded and penned down the details of the newest addition to the royal family.


Five years later...

"Big sister!" Sive called out to her elder sister who was seated by the side of the main fountain of the royal palace commonly dubbed the 'Mirage Fountain' due to the fact that the fountain waters had the ability to create illusions.

"Sive, did you sneak out again?" Amity rebuked her younger sister, who had apparently slipped out of the palace when her maids were not looking.

"Sister..." Sive whined, before brightening up and taking out the chessboard she managed to sneak out. "Teach me how to play."

"Very well." Amity nodded and the two sisters set out the chessboard.

Hidden behind a nearby pillar, the dark brown-haired Garrett watched over his charge and her sister, the two Princesses beginning a game of chess.


SailorStar9: Any OOC-nes is regretted. *Grins* Don't you just love plot bunnies sometimes? Reviews are much appreciated.