Cold-blooded Woman and High School Husband

Aoi immediately sits up as soon as she wake up. She notices she's at some sort of hotel. She notices someone was laying next to her. She couldn't believe what was happening. She gets off of the bed to gather her clothes. As she left the hotel, she tries to put pieces together that leads her night with an unknown man. Then it hits her. She head back to the company. Her grandfather notices his granddaughter coming into the office. "Ai." Ai ignores the pleasantries and asked, "Why did you do that to me?" He remain calm and said, "He'll be your husband."