The Affair of the Curly-Haired Brother

She is a two-dimensional otaku who is proficient in music, chess, calligraphy and painting. She loves to play games, sing and paint, and of course she also loves to sleep. She is an out-and-out natural and cute little girl. He is a good young man of the new century. He has a great wealth but never shows off. He studies hard and his good calligraphy makes high school students of the same age fascinated in vain. His classmates always laugh at him and say he is a literary youth, but he just smiles and plays games in private. Naturally, he is not defeated by these bad friends~~ Their meeting was too accidental Like the prince and princess in a fairy tale, but not so dreamy. Sister, you have to be careful, be careful not to be eaten by this cute brother~~~~ Haha, I've always wanted to write a story about sister-brother love. Please help me, newbie.