Yukari and Hakurei Miko (fanmade Touhou character) started an organization that was supposed to bring peace to Gensokyo, but the former led the organization down the road of corruption, so the latter became disgusted and threatened to leave if things do not become better. Yukari, however, sees Hakurei Miko as a role model for the organization, so while the latter was in a coma due to an accident, she took her DNA to create two clones to replace her if she really leaves. The two clones are Reimu and Sanae. When Hakurei Miko woke up and learned about this, this was the last straw for her, so she left the organization. Because of this, Yukari lost faith in everyone else and would not let any living being succeed her in ruling the organization, so using the combination of magic and technology, she created an A.I. more advanced than any known A.I. in the world in the form of a dragon to help rule over things. However, the dragon led the organization down a path that she would never have imagined; he wanted to control the whole of Gensokyo and everything that is happening to it, including the daily lives of the inhabitants. Hakurei Miko swears that she will put an end to this organization, even if it means getting killed by the hands of her "daughter", Reimu.
What if being pet on the head is the biggest weakness of everyone in the series? Doing this drains them of their powers for quite some time. This includes male characters as well.