War Voice Girl: a Gentleman's Contract, an Innocent School Beauty

[Contracted pure school beauty] + [War sound (copied song)] + [Refreshing article] + [Beautiful girl] = [Super pretty] Cao Shuang travels to another world, and everyone here will awaken a supernatural ability called Zhan Yin. There are two types of war sounds. The war sound masters focus on fighting. People can awaken the sound spirits and use songs to give the sound spirits different abilities to fight. After a long period of exploration, people have also classified the sound spirits into different levels. From the low-level birds, eagles, rocs to the top-level dragons and so on. There are also auxiliary music masters who can create songs suitable for the war music masters. After signing a contract with the war music masters, the war music masters' music spirits can gain various abilities and help them evolve. Cao Shuang awakened both Zhan Yin and Yu Yin at the same time, and became a dual cultivator. It was only because his talent was too powerful that the two awakened talents could not be estimated. Therefore, he showed no talent, but was mistaken for a waste, a person without talent. Not only was he abandoned by his girlfriend Liu Ruyan, who had awakened the S-class sound spirit Qingluan, but everyone also made sarcastic remarks to him. However, he was not sad. Instead, he was pleasantly surprised to find that the innocent school beauty who was also disliked by others actually awakened to the goddess of light, Butterfly! So he impromptu song "Gentleman" completely made the caterpillar-like goddess of light, Butterfly, manifest her true body. From then on, he took his contract with the Zhanyin girl and began a life of freedom and indulgence in the world.