Norika, a female student who attends a girls' school, is in love with Makoto, a university student. Rika grew up in a fatherless household, but her father was busy with work and lived a semi-alone life, and Makoto was her boyfriend, older brother, and father figure. The truth is that after she graduates from university, she will get a job at a prestigious company, and a bright future awaits the two of them. One day, her colleague Saji, who has a grudge against Makoto, appears and tells Makoto that she owes a large amount of money. It becomes the entrance to hell for both of them...
