A mother searches for her missing son after a devastating calamity, only to realize that she has died and is now confined to a realm of restless spirits.

The story continues from the Japanese SIGNAL drama series. In 2021, a limousine taxi driver causes an accident on a highway, and a high-level government official dies in the accident….

A high school girl, Sayaka Kudō was the bottom of the class. After a year, she improved her deviation value from 30 to 70, then passed Keio University that is…