Onzoushi, Wakeari no Shomin wo Oki ni Mesu.

Overview

Haruka, is a thrifty girl who needs money for a reason. While the employees are excited about Yuto Kamiki, the company's superior who has been transferred from head office, Haruka isn't interested at all. But she ends up getting angry with him, who has a stressful attitude and seems to despise money more than anything. As usual, she goes to her new client's luxurious apartment as his cleaning lady, only to discover that Kamiki has appeared there unannounced... ! What's more, he's got money to burn and appoints Haruka as his "personal housekeeper"... ? The life of incompatible cohabitation in the same building!

Source: AniList