Aira Holdsworth was a student who wanted to be always on the top. On the other hand, there was a transferee who intercepted her way and replaced her being on top. One day, there was an accident at school, and she tried to solve this mystery. Unfortunately, she found out that Matt was also solving the case. Because of her curiosity, she worked with Matt to solve the case which connected to their past. As they were trying to solve the case, chaos happened. Angels were trying to help them and catch the culprits. Unfortunately, it led to the past of Aira. Will they be able to avoid Aira's curse? Or will they let Aira be dead? WARNING: TAGLISH