Mincholino Federal Police

Yami is a member of the Mincholino Federal Police and one of the best agents in the Mincholino based force. One day he meets Yugi Mouto after arresting a thief and then meets the young man again later that night at Yugi's party. The two get along great but Yugi doesn't really like the danger that Yami experiences with every mission. One day Yugi's father meets Yami and he doesn't like the young police officer. He goes through Yami's stuff and finds an old box with some papers in the box that made Yugi and Yami split up. What did the box contain and will the two manage to work it out? AU.