If the synopsis can be given in just a line, it would be, "Love story between Killers". Tamiko, a night owl and an introvert, who was enjoying his night life, walking under the beautiful starry night, suddenly noticed that his classmate, Yui, the most beautiful girl in the school who was also called 'The gentle princess', being followed by a mysterious stalker. Tamiko tires to protect Yui but escalates the situation in a way which aggravates the stalker into pulling out a knife and to kill Tamiko. But Tamiko was successful in protecting Yui. They slowly develop feelings for each other in the course of 2 months and started going out, until something wild happens that completely changes their life... Someone from the shadows came out lurking. His motto? "Love is the greatest curse."