Children of Destiny

Children of Destiny is the family ship between Nils and Ninian from the Fire Emblem fandom.

Canon
Nils and Ninian are two playable characters from Fire Emblem Binding Blade. Ninian and her baby brother Nils were born in Illia centuries before the main game events. They are born from an human father named Nergal and an Ice dragon mother named Aenir. During the The Scouring (a war between humans and dragons) Aenir was kidnapped by men. Nergal bring his children on the island of Valor where was located the Dragon Gate, the Dragon Gate is a gate that transport dragons to an other world. Nergal let them to search for Aenir, he tell them to pass through the Dragon's Gate if he didn't returned in 10 days. Nils and Ninian used the Dragon's Gate without their father and went to the other world.

Nergal wanted to reunite with his children but he was unable to open the Dragon Gate. To do so, he turned to dark magic to obtain more power. He found a way to stop aging. However the dark magic corrupted Nergal who forget about his children and why he wanted power. In the other world Ninian has become a well-respected and powerful priestess. Nergal called Nils and Ninian through the Dragon's Gate. Ninian was nostalgic of her homeland and she crossed the gate with Nils. After crossing the gate they lost their energy and were forced to revert their human form. Nergal who had forgotten about them and who believed that he wanted to open the Dragon's Gate to steal the quintessence of dragons to have more power held them captive.

Nergal wanted to force Nils and Ninian to calls dragons in Elibe. The siblings escaped and disguised themselves as wandering artists.

Fanon
Children of Destiny is a popular sibling pair since the release of Fire Emblem the Blazing Blade. Many fanarts show them together. Some fans of the sibling pair hate the ending obtained if Ninian A supported Eliwood where she left her brother to stay with Eliwood and choose to never pair Ninian with Eliwood. Some fans also love both Elnini and Children of Destiny. Many fanfictions focused on their sibling bound take place in the ending where Ninian stay with Eliwood and show Nils and Ninian's sadness and farwell. Some other fanworks depict them in Fire Emblem Heroes sometime reuniting after the ending where Ninian left Nils. Some fanarts depict the pair in different contexts (like for exemple with different species). Other fanworks showing them when they were very young with their parents Aenir and Nergal exist but are rare since it's difficult to unlock the bonus chapter where their story is told.

Fandom
FAN FICTION