The Honjo couple reside in a high-end residential area with office buildings lining the streets. One evening, while Tsubasa was doing housework, she received a call from her father. It was a request to take care of her husband's brother who had been fired from his company. The couple happily welcomed their brother-in-law, whom they hadn't seen since the wedding. However, something seemed off about him. One day, after her husband left for work, the brother-in-law took some actions…
