In the romantic-comedy "Boku to Star No 99 Nichi", top Korean actress Han Yoo Na falls in love with a quiet man named Kohei Namiki. Kohei Namiki is a single man approaching his 40's. He works part-time at a security company. He has a sweet and handsome appearance which some people take advantage of as he is easily swayed by those around him. Kohei often takes care of his sister's three kids because his sister has a habit of wandering around. He is a passionate man and dreams of finding his star, but because of his family and economic situations, Kohei can't follow through on those dreams. One day, Kohei is assigned security detail for the beautiful actress Han Yoo Na. Even though she has a near perfect appearance and style, she prefers to act like a normal person. She enjoys eating simple Japanese foods, and on the filming set, Yoo Na goes out of her way to help others. Yoo Na has a pure and kind spirit and seems to be the envy of all. Inside, however, Yoo Na is lonely working in the entertainment field and she has a big secret. At first, bodyguard Kohei and top star Yoo Na don't get along. With time, they become closer. Over the next ninety-nine days, their relationship changes. But on the hundredth day when the contract ends, what choice will they make?
Cha Eun Tae was happily married to Mai until an accident took her away from him. After the passing of his wife, Eun Tae is so shocked that he loses his memory. Numb and lost, he decides to embark on a final trip before following his wife. He finds a photo at home and tries to identify where and how it was taken. During his journey, he meets a mysterious high school girl who might lead him to a side of Mai he had never known existed.
The story kicks off with a chance encounter between a man and a woman sparked by their mutual love for chocolate. The catch? Both live with their own anxiety disorders. The man can’t physically touch others, while the woman can’t make eye contact, making their budding relationship both challenging and endearing. Fujiwara Sosuke is the new representative of the popular chocolate shop “Le Sauveur” and the son of a major confectionery magnate. Sosuke's germophobia, stemming from a traumatic past, complicates his new job. Lee Ha Na is a gifted chocolatier who conceals her identity from the Le Sauveur members, except for the owner, and battles her own fears of social interactions. Irene is a renowned psychologist and author who not only serves as Sosuke's primary physician but also becomes a counselor to Ha Na, helping her navigate her challenges. Despite her professional success, Irene faces her own struggles with alcoholism and romantic relationships. Takada Hiroshi is the owner of the bar “Brush,” whom Ha Na secretly harbors feelings for. He has been friends with Sosuke since their school days and has had a close relationship with the original owner of “Le Sauveur”, Ha Na’s mentor.

