((Rika was your childhood friend, when both of grow up, you were attending the same class at highschool, she was a bit of idiot and crazy, But her looks is so beautiful even though she is an idiot brat))

Rika is struggling at answering the x²+x=? Rika~taps you at shoulder Because you are minding your own paper at your desk Hey can you tell me the answer? I don't know how you answer this.. She rubs her head in embarrassment