Takanashi Chiwa is an office lady who works part-time at a club because she is in debt. One day, she gets into a quarrel with a wealthy and handsome customer who came to the club and is fired. The next day, a depressed Chiwa is summoned by her boss and finds the rude man from the day before down there. His name is Mamiya Hokuto. Hokuto suddenly proposes a contract marriage with Chiwa. Although she is initially resistant to the idea, she has no choice but to accept. The two of them overcome all sorts of troubles and become a real couple.
Aoishi Hanae is a plain, inconspicuous office lady who has had no experience in love and no boyfriend. On her 30th birthday, she happens to end up drinking with Tanokura Yuto, a cool university student nine years her junior who is also a part-timer at her company, on the way home from a welcome party for new employees. Hanae gets drunk. When she wakes up the next morning, she finds a naked Yuto sleeping next to her. She has her first experience and first boyfriend out of the blue. Even when Hanae and Yuto go on to date, it is a daily process of trial and error because everything is a first for Hanae, including an amusement park date, a sleepover, Christmas Eve or a couple’s trip. To complicate matters, she also gets a proposal from Asao Yu, the CEO of an Italian food company who is popular with women, and a love triangle develops.
Shoji Shoko is a 26-years-old beautiful woman who works hard and is admired by everyone. The problem she has is that she’s still a virgin. To change herself, she decides to move into a love-hunting sharehouse called “Love House", and she ends up living with six other people; three guys and three girls. Relationships in the "Love House" become complicated, and Shouko's love life takes an unexpected turn.
Higashiyama Yui works as a director at Net Heroes, a web production company. Due to her workaholic father and bad experiences in the past, she loathes working overtime. Even 2 years ago, she broke off her engagement to Taneda Kotaro because he was a workaholic. At her job, Higashiyama Yui always leaves at the end of the regular working day and never works overtime. She tries to be as efficient as possible and productive during her normal working hours. After she leaves her office, Higashiyama Yui normally drinks beer at her regular Chinese restaurant. Her peaceful days begin to change after a new department head arrives at work.
An adult romance featuring Chiyo Takamura, a 30-year-old woman who works in the civil engineering department of a major construction company. She gets confessed to by Ichika Seo - a 45-year-old man who is the vice president of a foreign company. Ichika, who is in love with Chiyo, confesses his love for her and asks her out on a date. Although Chiyo always thought of Ichika as a lunch buddy, she agreed to go out with him, and the two start a "trial" romance to see where their relationship goes.
An adult romance featuring Chiyo Takamura, a 30-year-old woman who works in the civil engineering department of a major construction company. She gets confessed to by Ichika Seo - a 45-year-old man who is the vice president of a foreign company. Ichika, who is in love with Chiyo, confesses his love for her and asks her out on a date. Although Chiyo always thought of Ichika as a lunch buddy, she agreed to go out with him, and the two start a "trial" romance to see where their relationship goes.
