With only a month left until high school graduation, the protagonist, Mizusawa Yoshihiko, has to move to the city of Akizuki due to his father's sudden job transfer. He ends up staying at the home of his father's acquaintance, which is a household of women: a widow and her two daughters. While the younger sister, Manami, takes a liking to him, the older sister, Kana, completely dislikes him, leading to a complicated start to his new living situation.
In addition to this, he meets and interacts with various women, including a younger schoolmate and a girl who is hospitalized. Who will be the one to share the protagonist's first kiss?

[Translated from Wikipedia]