Once upon a time in a small village, in a country full of trees and abundant treasures. The treasure is not what you think,
KRRKRKRKRKRIRIINNGGG!!
The alarm sound of an alarm clock.
It was very loud, huuuuh, a boy sighed in his blanket. He heard a loud alarm sound, but tried to ignore it, "Uhhmhmmm." He folded himself into the blanket. "Karen, come on, wake up!" A Woman called the name.
Amethyst Karen.
The name of the boy who still ignores his mother's call. "All right—all right, mom!" Karen opened his eyes which were still sore, heavy, slanted like a cat. He's seven years old, and today, "Your first day of school isn't Karen." His mother opened the door to the boy's room. "Yeah." Karen replied to her mother's words while yawning. "Don't forget to fold your blanket back." His mother replied gently.
"I hope to learn something about Seisui today." Karen muttered with a beaming expression. He smiled widely as he looked out the window of his room. The morning sun shone from outside the room, sunlight shining through the thin glass on a tree where two people lived.
Inhabited tree.
This is of course not a tree house, literally a family lives in it. A small family of the Amethyst lineage; Astral Item User Clan. They were known as the clan of the outcasts of the oldest Kagutsuchi Clan from the Eastern Land.
At a time.
Gods & Goddesses from heaven came down to earth to bless the place they had just touched. They share what is called Holy Water (Seisui). The water flows to all creatures throughout the earth, animals, plants, and all living things get it.
Without exception.
The power they received from Seisui was very strong, but not everyone could control it. Some of them were adept at using it, so proficient that they named themselves Rinka.