Name: Youmu Konpaku
Species: Human/ghost (the glowing ball is her ghost half; it's complicated)
Age: Relatively young (for Touhou, anyway)
Known allies: Yuyuko Saigyouchi (canon, her mistress), Tomoya Okazaki (friends)
Known enemies: Rugal Bernstain, Akasumi Uchiha (from previous arcs)
Personality: Impulsive, short-tempered, single-minded, will do whatever Yuyuko tells her but is mostly moral otherwise
Backstory: Youmu has been in and out of the AA world several times, and has started remembering more about its inhabitants - though every time there's a full-blown reset she has to start over. Usually it's with Tomoya, her closest friend among their cast. Recently, after Falcon's screw-up with Irelia, she's been connected to him as well - under the same set of conditions as Irelia: only she can hear him, and he can't read her mind so she has to talk out loud to contact him.
Powers/Equipment: While Hakurou-ken, the shorter of Youmu's two swords, is a family heirloom able to cut through confusion, she uses Roukan a lot more often since it's able to cut through
nearly anything. She's also able to use a quick-step, not actually teleporting but just moving incredibly quickly and often cutting through anything she moves near in the meantime, or slicing at the end of the dash.
Coming from Gensokyo, she's also a user of their
danmaku magic art, able to fire basic offensive magic from her ghost half or from her swords, or even a combination of the two. When things get too tough to handle, she also has several spell cards that amplify her abilities temporarily - though each can only be used once and creating more is difficult.