Inappropriate New Employee

Ji In-Ju, a manager of two years at the company, has been subjected to constant violence and gaslighting by team leader Lee, his school senior and boss. One day, his partner from an impulsive one-night stand joins the company as a new subordinate... But In-Ju deosn't dislike his touch or interference. Will this relationsihp save a person accustomed to violence, or is it just another bad relationship? (Source: Ridibooks, translated) Note: Includes four extra chapters.