Summer has been dating her senior, Koichi, who is one year older than her, since their school days. They overcame difficulties such as their parents' divorce and the family business's decline, and came to Tokyo together. Summer dreams of building a simple yet happy home in this city and has been diligently job hunting. She finally received an offer…!! The two of them took another step towards their dream and were delighted. However, the president of the company where she got the offer, Takada, took a liking to Summer at first sight and had his sights set on her.
