"No wonder they're frozen... You’re like a little doll!"

Emilia is the main heroine of the Re:Zero kara Hajimeru Isekai Seikatsu series. She is a half-elf and a candidate to become the 42nd king of the Dragon Kingdom of Lugunica in the Royal Selection, who met Natsuki Subaru on the day he was summoned to the world. Emilia has played a supporting role in every arc, with major and pivotal roles in more than half of them.

Born and raised by her aunt in Elior Forest, Emilia is a half-elf terribly beloved by the spirits. However, during the Permafrost of Elior Forest, her memories were locked away, and she was frozen for approximately 100 years. After being watched over by Puck, she eventually became a Royal Selection candidate in the hopes of unfreezing the residents of the forest. Through many trials and tribulations, including mass discrimination, she came into her role well, holding many feats under her belt, including helping to defeat the Sin Archbishop of Greed and the Great Rabbit, becoming the administrator of the Pleiades Watchtower, and forming an alliance with Vollachia.

Beatrice is a member of the Emilia Camp and the former caretaker of the Forbidden Library at the old Roswaal Manor, until its destruction in the climax of Arc 4. She is one of the main supporting characters in Re:Zero, having had a supporting role to play in every arc except Arc 1 and Arc 3.

She is an artificial spirit created by the Witch of Greed for unknown reasons. 400 years ago, she was told to wait in the library for "that person" who would grant her salvation. However, in Arc 4's climax, Subaru convinced her to live, and she became his contracted spirit.

(What else can I say? I love Re:Zero)