Two young women, Minako and Naomi, have been friends and lovers since their school days, and are now living as roommates in the city, working together for a large company. Although she cares for Minako, Naomi decides that she should leave behind her past, find a husband and have kids. Minako, on the other hand, is happy with things as they are and doesn't want to change. The two must work out what they really want out of life, going their separate ways if need be.
Komori Chiaki is a budding tennis student. However, one day while training, her coach hits a ball into her eye on accident. At the hospital, the news that she will never regain the sight in her eye leaves her heartbroken. As a last resort, she undergoes a costly surgery from the mysterious doctor known as Black Jack, where after a successful operation, a mysterious figure starts to emerge in her vision, and only she can see it.