Reimu is generally a joyful and airheaded person. She’s also incredibly prideful and quite arrogant due to it. She’s often seen in a good mood until her routines are broken by some outside influence, be it a youkai or the like. She is quick to anger, but she’s also quick to forget.Something happened to her that made her not the same as she used to be, she turned very brutal and destroyed everything around her, she was detained by the SCP Foundation.