Time Travel Idol Trainee and Twenty-Year-Old

After the heroine traveled to a parallel world, she became a boy and had the "Entertainment King System", but the system was unreliable. After inputting those songs and books into his mind, they disappeared. Therefore, what kind of sparks will arise when the time of twenty-year-old Buhuo intersects with that of an idol trainee, and when the idol becomes a senior who is about to enter the society and skips a grade. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.