When I rejected the selfish young lady who thinks the whole world belongs to her, she came at me with full force as a "friend"

There is one outrageous young lady at my school. She's the only daughter of a conglomerate head who possesses Japan's top wealth, and having been spoiled rotten, she's extremely selfish. She believes everything will go her way. Called out by her after school, she tells me, "Go out with me!" but since we had no connection, I refuse. Then she backs down saying, "Well, then even as friends!" and I find myself agreeing. And so, this young lady begins to pursue me as a "friend." This is a romantic comedy that begins with a certain young lady's confession.