Hachiman is the story's main protagonist, an isolated, friendless boy who is pragmatic to a fault. His most prominent feature is his set of "dead fish-eyes." He firmly believes that "youth" is simply an illusion created by hypocrites, for hypocrites, born from the ashes of past failures. In this state of apparent corruption, he is coerced into joining the Service Club by his futures advisor in the hopes that exposing him to the world will change his personality, and ultimately make him a "better person." He is called "Hikki" affectionately by Yui. (Source: Vistrans, Yahari Wikia)

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 Wiki)