I'm in Tokyo, and I'm a professional boyfriend.

Shiina Iori, who travels to Japan and gets into university, thought she could become rich through her studies, earn 20 million yen a year, and pay off her family's loans. But then, the system that was 20 years overdue finally arrived.
Along with the system, he also received the devastating news that his lifespan was only twenty-four years.
In order to prolong her life and pay off her loans, Shiina Iori embarks on a path of suffering and no return, using her sexuality to entertain others.
"So, you can accept being my boyfriend for only one hour a day?"
Which hour?