Koneko ♂ ga Matteru node Kaerimasu.  

Koneko ♂ ga Matterunode Kaerimasu, My Cat Is Waiting For Me!, 家有幼猫♂, 子猫♂が待ってるので帰ります

Feeling overwhelmed at work, Miyako decided to adopt a cat as a stress reliever. However, her plan didn't go as smoothly as she had hoped. While on her way home without any luck in finding a suitable pet, she stumbled upon a child shivering in the snow with a cat-ear parka on his head. She brought him home, cleaned him up, and discovered that he was actually a handsome young boy who threatened her to stay or she would be reported to the police! Thus began a bishonen x OL roommate story with 18 main chapters, 12 omake chapters, and 3 volume-bonus chapters.