[Machine Translation] How do I explain my relationship with Natsuomi? A high school student, Natsuomi Katagiri, who lives alone, and Yui, a beautiful girl with black hair and blue eyes who moved into the room next door, continue to spend their days together around the dinner table. At school, Yui is still described as a "couderette," but in front of Natsuomi, she often shows a soft smile. Their relationship begins to change when Natsuomi's best friend gives them tickets to a fireworks display. Yui is a little worried about the date. A date? When they realize that they care about each other and are comfortable with each other, their relationship becomes even sweeter.