How to Save the World with the Audio Game Card Drawing System

[Liu Xu, 21 years old, born as a child star, graduated from a major, and the quality assessment score of the task executor: perfect] Looking at this almost perfect resume, the systems in the Lord God Space were gearing up and expressed their desire to be bound to this executor. However... Main System: What games are you good at? Liu Xu (confident): I am very good at music games! The systems that came for that perfect resume looked at each other and took a step back, leaving behind 079 who was completely unaware of their actions. Liu Xu (choking): Are you serious about taking a step back? Main system: OK! Thank you very much for 079's sacrifice. The vest card drawing function has been sent. I wish you a happy binding. 079:...? Looking back in confusion, he realized that he had been betrayed by his colleagues. With an expression of disbelief on his face, he received the audio game card drawing function sent by the main system and bound it to Liu Xu. After doing various psychological preparations, 079 spoke to his new host with a decent smile. 079: Hello Liu Xu, I am your system. You can call me 079. The official name is [Salvation System]. Please give me your advice for the rest of my life. Liu Xu (old man on the subway looking at his cell phone. Jpg): ... Wait, what system are you on? 079 (Laughing): The salvation system's mission is to save the world! Liu Xu lowered his head and looked at Kachi in his Yinyou vest, his eyes widened. Wait, Ma Jia Ka Chi is a music game. How do I save the world? ! ! ! (Erkang hand) Yinyou Card Pool—Idol Dream Festival 2 (There are special changes, no, no, no, you don't really want to see the protagonist sing and save the world.) Ps: Idol Fantasy Festival (es) A game whose theme is idols but develops outrageously in other fields I originally planned to write about Gojo Sister, but I had better try to avoid what happened with the curse, so I changed it to this. If you like es characters, you can check here, I will try my best to restore them! The author is a very fragile creature, please treat it gently and carefully. Intention: Do your best today!