My Dearest Patrolman manga volume 2 features story and art by Niyama.

The seasons have shifted, and Shin and Seiji are starting their new life together. Living under the same roof as the man he's had a crush on for a solid decade has Shin's libido in overdrive, and even his rampant awkwardness can't get in the way of him getting some! Meanwhile, Seiji is swamped with self-doubt. Does an old man with a bleak romantic history have what it takes to satisfy his hot, young partner?