They are active, curious, passion, happiness, sadness... and they own the whole world. Music was their interest, hobby, and their way to interpreting the world. However... The storm of their life comes without warning. Can they see the rainbow after the storm?

The whole story begins with a shipwreck. Ye Feng and his friends is going to the music competition, so they have a trip to Hainan for inspiration. However, they have a great storm and shipwreaked on the way. When they wake up, they find themselves on an isolated island, where is called Paradise Island. After their arrival, a thousand-year seal is breaking, and their adventures begin...

Music Up: Summer Rainbow is an adventure game loosely based on the Chinese animated series Music Up, featuring the characters from the series, similar to Sakura Wars series.