Nakayoku Shiyou ne Otonari-san

A nightlife worker and a public server, two opposite poles living as neighbors. Before noticing it, they started spending time together and, unintentionally, they start caring for the other.

Mukojima, a police officer who has some suspicions toward his neighbor, lives alone in an apartment reminiscent of the Showa Era. One night, Mukojima faces a crisis inside his apartment and the one who comes to his rescue is none other than Mikoshiba, his neighbor. By taking his invitation, Mukojima ends up in his neighbor's apartment, where they share some drinks.

(Source: Fusion Product, translated)