/jp/ - Otaku Culture

>>5507284
Somewhat true, but most of the technology used on the Lunarian Capital is so advanced that it would appear to be magic from our human perspective.

Impurities are to blame for humans' short lifespans. In order to live longer a human (who became a sage) decided to create a world 'without' impurities on the moon [1]. In order to protect their new found paradise from the people they left behind on Earth, they created youkai to regulate the Earthlings' filthiness [1][2]. The youkai began to terrorize the humans, and thus powerful, heroic humans were sent to exorcise and exterminate them. The off and on battle between humans and youkai continued on until Gensokyo was sealed off from the world (with the advent of the Hakurei Border) [3]. During that time the Lunarians invented a limitless power supply. Yukari thought she could use something like that to improve the living conditions of Gensokyo [4]. It concluded with the First Lunar War.

[1] http://touhou.wikia.com/wiki/Cage_in_Lunatic_Runagate:_Chapter_3
[2] http://touhou.wikia.com/wiki/Imperishable_Night:_Scarlet_Team%27s_Scenario_2
[3] http://touhou.wikia.com/wiki/Gensokyo
[4] SSiB chp 3 page 7-8

>>321985
Youkai can't survive on their own. The outside world has no more need for them. By creating the paradise of Gensokyo and surrounding herself with fellow youkai, Yukari is effectively ensuring that the supernatural--herself included--survives. The first Lunar War served as an example to those hotheaded youkai who thought such things who couldn't understand that the modern world is a scary place.

Also, power. The inhabitants of Gensokyo are split into various factions. By rallying numerous youkai around herself, she maintains her influence in Gensokyo.