[Tutoring + JOJO] Is the World Doing Something Wrong?

My name is Sawada Anzu. An ordinary high school student with a gentle mother, a brother who loves me, and, oh yes, my brother's tutor who recently moved into my home. I also have an online friend whose ID is Crazy Diamond. He and I chatted pretty well, so in order to cooperate with him, I also changed my ID to my favorite song - La gloire à mes genoux (Glory surrenders to me). By the way, I am about to meet Crazy Diamond recently. ——*Short story without outline, simple and refreshing*Lots of private settings*First person voice*Undetermined cp, maybe no cp*Yes, the heroine's name is derived from ginkgo leaves Purpose: campus