Kimi wa Boku no Toriko Nare

Tomoe, the heir to the powerful Fushiki corporation, arrives in Japan as an exchange student. As the youngest child of the company's leader and the son of his father's mistress, he was unexpectedly chosen to inherit the business. Due to threats against his life, he is assigned a new maid. She wears glasses, is awkward and rude, but is actually his bodyguard. She protects him using a mop.