For Sophia's birthday, Jacob made early preparations.

The house was clean, and there were flowers, beer, chocolate and cheese. Jacob looked at the simple room and found something missing. Suddenly he thought of something and went out again.

Sophia came back. As soon as she entered the room, she saw that the window was decorated by flashing colored lights.

"Happy birthday!"

Jacob was holding flowers in his hands. On the table in front of him was a heart-shaped cake ...