I have a sister who will be seventeen forever, Yakumo Yukari. That's the basic situation.
But one day, my sister finally kicked me out of Gensokyo. Furious, I decided to restore my authority as head of the family, build my own harem village, and fight my way back into Gensokyo!
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.
