Rem

レム,

Age: 17
Birthday: February 2
Height: 154 cm (5'1")

Rem is one of the twin maids working for Roswaal L Mathers. She tends to speak in a superficially polite manner and sometimes acts without thinking. She holds both worshipping respect and guilt toward her sister for an incident in the past; because of this, Rem tends to think of herself as inferior.

(Source: Re:Zero Wikia)