For most people it's algebra, especially around the point when all the numbers start disappearing to be replaced by letters. For some it's the more abstract stuff, like the definition of a function, or limits. But for Light O, it's NON-LINEAR FUNCTIONS.
For most people it's algebra, especially around the point when all the numbers start disappearing to be replaced by letters. For some it's the more abstract stuff, like the definition of a function, or limits. But for Light O, it's NON-LINEAR FUNCTIONS.
or for us who took Trigonometry back in 1st year high school... cursed curved o'tips
That's because she is, it's in the pixiv tags. Commissioner is also known for commissioning UMP45 art, and had an artist who frequently does UMP45 edit the work to make it more like her. See post #7884102.