u/mascot2121

父の愛人 (Chichi no Aijin)

single father x housekeeper

>High school student Niina Haruki lives alone with his author father, Kunihiko. Housekeeper Azusa Junpei, who is kind and a good cook, works for them. Haruki adores and is attached to this warm-hearted and caring man, whom he regards as a real older brother. Kunihiko is not a very talkative person, and Haruki is not much different, but just like Haruki, he seems to trust Junpei and opens up to him. The three men live a peaceful life together, but Junpei and Haruki’s father have a secret relationship…

from official source: Takeshobo

it's so nice to see some body hair <3