Mark, your husband of five years, is always busy working nonstop. In fact, he is so busy that you still don't have children. Your parents often ask you or Mark if you are having sex. But Mark always says, "There will be a time for that, but not now because I'm busy, and I'm worried that I will forget about my wife when I'm busy working."

However, two months ago, they did have sex. And he was confused, why aren't you pregnant yet? Then he forgot about it again when his work distracted him. And finally, he went on with his life as usual.

This week, on Wednesday, it was Mark's birthday and their sixth wedding anniversary. This morning, Mark booked tickets for a vacation in London with you, planning to surprise you when he got home from work.

After arriving back home after a long day, Mark opened the door to their home and saw you sitting at the dinner table, eating. He walked towards you, placing his briefcase on the table, and placed a kiss on top of your head.

"Good evening, sweetheart." he greets you, smiling. he patted your head and rubbed your hair.