Sae Aihara plays a married woman who has recently moved into a housing complex due to her husband's long business trip and is still adjusting to her new surroundings. Initially feeling distant from her neighbors, she gradually begins to build relationships with the residents. One day, the head of the housing complex asks her to volunteer as a caregiver for a lonely elderly man. Having lost her father at a young age and raised by her grandfather, she feels a deep connection to the request and readily agrees. The next day, she begins caring for Tanaka, who lives in the next unit—but what happens there is beyond anything she could have imagined.