Chi fruit (Earth-2213)

A chi fruit is a special kind of fruit that grow from God Trees and contain large amounts of chi.

History
Before the Era of Raava, a God Tree seed landed on Earth from space in the form of a meteorite. It was believed that the God Tree helped the land to become fertile and thrive, when in fact, it was slowly killing the land and its people by draining their chi.

Every thousand years, the God Tree would produced a chi fruit, which humans believed should never be touched. Kaguya and her family traveled from the Moon to Earth so they could become stronger by consuming the fruits. Once she settled on Earth, Kaguya decided to use the bending she mastered to rule over the human populations.

Hoping to keep the peace, Kaguya enslaved most of the human population under the Infinite Tsukuyomi and trapped those affected by the God Tree by assimilating their chi. When Kaguya's child, Hagoromo, was born, she merged with the God Tree and became a creature known as Vaatu, while Hagoromo used his bending to become Raava, and thus a new era started.