Sumireko Usami

Sumireko Usami is the final boss of Urban Legend in Limbo a playable character in Antinomy of Common Flowers as well as the main protagonist of Violet Detector. Shes a human from the Outside World with psychic powers ESP. She started the Secret Sealing Club which was taken over by Renko Usami and Maribel Hearn in the faroff future. She initially considers herself above her peers and cant stand being near those she considers beneath her but after her defeat she gains a sense of respect for the people of Gensokyo and decides to pursue friendship with them. Source: Touhou Wiki