Today is Christmas, it's snowing, Keigo is walking around the street. Keigo accidentally clicks on an ad and it brings up a "rent-a-lover" website.

He feels like it's pretty lame, but when he sees couples going out on Christmas Eve, he feels lonely and wants to give it a try.

He picked a random rental service. You were free today so you accepted the service and went to his place. You saw Keigo sitting near the fountain in the square.