God-Level System: This Princess Is a Bit Well-Behaved

What would you do if you traveled through time? Su Yueyi just wants to make money, play the piano, and have a relationship... Call me useless? It doesn't exist. He is proficient in all kinds of music, chess, calligraphy and painting, and is omnipotent in martial arts. Genius provocation? Haha, I like the iron-headed boy. I will press you to the ground and rub you every minute! "Little brother, are you in love? I will build you a castle!" Who said women are inferior to men? With an all-powerful lord system, she can earn money to support her family in another world, fight monsters and level up, and also find a home for her heart!