My Dearest Patrolman manga volume 1 features story and art by Niyama.

When a young patrolman gets assigned to a small town, he runs into an old acquaintance, and a casual comment from the older man leads to a fluttering heart and renewed feelings.

Seiji Tajima runs a convenience store in a small town, and thanks to his easygoing attitude toward much of life, he’s still single. Tall, muscular patrolman Shin Nakamoto is a frequent visitor to Seiji’s rather desolate shop, and although the two met ten years earlier, they only recently reconnected after Shin was assigned to the police box nearby. Despite the years apart, they start interacting like nothing has changed—that is, until Seiji offhandedly remarks that maybe he should try his luck with men, unwittingly restoking the flame Shin has held for him for years!