The protagonist, who lived alone, finds a housekeeper waiting for him in his room upon coming back.
Her name is Janette, and she's from Finland.

She was deployed upon a request from his mother, and it seems she'll even provide night (sexual) services for him. Her cooking is delicious, and in the bath she'll stick her naked bombshell body to his and give him a handjob — impressive, impactful service.

In bed, she'll even have wild sex with him until the sun comes up.

(Source: DMM)