As far as Mia remembers, she stopped attending school due to her severe headaches and passing out. She's already a 3rd-year high school when her illness strikes her. That's what her mom told her. Her mother became so protective of her that she is no longer allowed to go outside their home. But the truth has started to unfold when her sworn enemy, Cloud, started to act strangely towards her. Will she able to get a hold of the truth?