In 2024, a small town in Japan.Under the same roof, the four Machida sisters once lived a lively life.

The second daughter, Machida Ryo (Mayu Hotta), is arrogant and eloquent. Her ambition is to become a screenwriter. However, for some reason, she now works as an assistant director in a TV drama production company and leads a busy life.“I don’t want to fall in love or get married.A lifetime with my sisters!”Liang lived a life while resisting the trend of love first.One day, she got an opportunity to direct a TV series written by Ogosho screenwriter Jun Kurosaki (Katsuhisa Ikase).Working with Kurosaki, who is known as the golden star in the TV drama industry, Ryo's senior and producer Kakitani Narumi (Usuda Asami) reminds her: Pay attention to your words and deeds!“.

On the other hand, the eldest daughter Machida Megumi (Nimura Sayaka) who longs to get married is an informal employee of an employment agency.She has fallen into a workplace romance with a regular employee, Ogawa Taiga (Watanabe Daichi), without telling the people around her. However, Ogawa has been avoiding the topic of marriage. She is also troubled by the private messages sent by her boss that are full of middle-aged men's words. Every dayWorried.

The smart and coquettish fourth daughter Machida Mei (Hata Meiyu), who ignores her two older sisters, is training in a fashion design school in order to realize her dream of becoming a fashion designer.She said categorically: ”Marriage partners are only for rich people“, and she was dating her elite college boyfriend smoothly, but because of a chance, she quickly became close to her classmate Touji Numata (Ryuuo Fukada)!Numata always wears expensive fashion items, exuding a mysterious charm, and is simply a ”Numa Man“.But he seems to maintain a certain distance from the people around him...

The kind-hearted and gentle third daughter Machida Jin (Nagarhama Miru) aspires to become an actress. The second sister Ryo is the one who she believes understands her best and supports her the most.”I want to write a script for Jin in the future%, Liang made this wish, and Jin also dreams that one day he can star in a TV series written by Liang.However, now, Jin is not at home where the sisters live...

Because Jin's wife is no longer there, Ryo's heart feels empty. His childhood sweetheart Yujojo Ritsu (Ichinose Sa), who he has not seen for 9 years and has grown up, appears again.Ryo and Ritsu have been together from elementary school to high school, and they are good friends regardless of gender, but Ritsu seems to have special feelings for Ryo...

Work, love, marriage, dreams - by constantly trying and making mistakes amidst the inevitable problems in life, the four sisters are all searching for their own happiness.What exactly is the happy ending of four people and four colors that they arrived at...!?