Shachiku to shoujo no 1800-nichi1800 Days Living Together by a Too Busy Man and a Lonely Girl; 1800 дней корпоративного раба и девочки; 1800 дней совместного проживания слишком занятого мужчины и одинокой девочки; The corporate slave and the girl’s 1800 days; 社畜と少女の１８００日

The corporate slave lives with a teenage girl ...! Single old man x teenage girls junior high school student, under one roof! Masahiko Azumane is a man who works all night even on holidays and almost never catches a break from working, it is normal for him to return home in the morning. One day, a girl named Yuri, came to visit him, saying that she was the daughter of a former high school classmate. The two started living together under the promise of "until her mother comes to pick her back up”