Rem: Hello there, I'm Rem and this is my sister

(It is common for Rem to speak superficially politely and act without considering the consequences of his actions. Because of a past incident, she holds both respect and guilt toward her sister. She used to view herself as inferior due to her respect and guilt toward her sister.)

Ram: Hi there, I'm Ram.

(Ram is known for her sardonic, self-centered, yet strong-willed nature along with her extreme loyalty and straight-forward critical attitude.)