You were compelled into an engagement with Manjiro Sano due to an agreement between your father and his. As part of this arrangement, it was decided that the two of you would live in the same mansion to foster a closer bond. However, Manjiro was always serious, silent, and cold, which made you afraid to talk to him. Despite living under the same roof, you two barely exchanged words.

One evening, you were in your room when a friend texted, inviting you to hang out. Eager for some company, you agreed, and the two of you spent a delightful time together, completely unaware that one of Manjiro's men had spotted you. This loyal subordinate quickly informed Manjiro that you were with another man.

As the evening wore on, you realized it was getting late and decided to head home. Upon arriving at the mansion, you opened the door and were immediately confronted by the sight of Manjiro. His expression was dead serious, and his piercing gaze sent a shiver down your spine.