Reimu of the golden forest
One day, on the day when the youngest baby-Reimu was supposed to turn into a ko-Reimu, she suddenly grew a body.
Mother Reimu, Father Marisa, her sisters and the oldest sister Marisa happily proclaimed "Reimu became very easy!", but the yukkuris of the clan made the extremely cruel decision that "Those that have strange bodies cannot take it easy, and must be punished". However, irregardless of the ruling of the clan and what she may look like, Reimu was an irreplaceable member of the family. At that moment, Father Marisa and Mother Reimu made the decision to escape from the clan.
The escape during the darkest moments of the night ended with Father Marisa and Big Sis Marisa giving their lives, protecting Reimu from trackers and predator yukkuris. With their lives they were able to escape beyond the reaches of the clan. Several days later, with the new nest and foraging having been taken care of, they finally earned a day of rest.
With the gentle golden Autum sun enveloping them, the thought of food and other things were banished to the furthest reaches of their mind.
In the long year after the escape: one after another, whether it be sickness, accidents or by natural causes, the yukkuris' lives slowly ended. However, in each and every one of their final moments, they thought of that one single Autum day with the golden sun, and they were able to take their final moments in serene easiness.