Kazune-kun said he was going to the future to check things out about the seeds of chaos and stuff and Karin who loves him dearly, doesn't want him to go because there's a chance he won't be able to come back. It's Christmas Eve and they have a little date around the city. Michiru tells Karin that if a couple kiss in a certain church, they will be together forever. He also told this to Kazune as well. They go into the church and Karin begs Kazune-kun not to leave her, and he kisses her, promising his return..