Kogasa Tatara is a karakasa who wants to surprise people. She hasn't been very successful so far. She tried to scare the heroine just for fun, but she was beaten easily. Later on, she decided to go to Byakuren's Temple to try and scare her, but instead, she met the same person and got beaten again. At Ten Desires she tries to enter the cemetery, but is stopped by Yoshika (guarding the cemetery of the intrusion), then asks the heroine who has beaten the keeper of the cemetery. She ends up being defeated by the heroine for being a youkai She makes an appearance in chapter 9 of Touhou Ibarakasen ~ Wild and Horned Hermit.
