Rem

Rem (レム, Remu) is one of the secondary characters of Isekai Quartet.

Appearance
Rem has medium length sky blue hair that covers her right eye, large light blue eyes, and young features. She also has hair clips towards the left side of her hair, a flower-shaped ribbon on the same side of her hair, and a maid hairband. She looks nearly identical to her sister apart from her hair, eyes, and ribbon coloring. She usually wears a maid uniform.

Personality
A sweet maid that follows Subaru having a love for him that even Albedo approves. She is outspoken and honest, and praises her sister even if she does nothing. She wishes to protect Subaru even if it means hurting someone.

Prior to the events of Isekai Quartet, Rem went berserk when her horn protruded in her forehead and Subaru found it terrifying before striking it. Eventually, her love for Subaru enabled her to control herself even in her horned form regardless of which world.

Unlike Albedo and Shalltear, Rem was disciplined in the form of being able to prioritize her duty over love when necessary.

Powers & Abilities
Rem can run at high speeds and effortlessly carry Subaru,

Ram
A long time ago before the events of Isekai Quartet, Rem felt inferior when compared to Ram. Nevertheless, she still loved and cared for her sister. One night, Rem was horrified to see the witch cult cut off Ram's horn after the cult massacred her village including the twins' parents before Roswaal took them in. Rem worked very hard in catching up to Ram, but had been feeling insufficient. During the demon beast incident, Ram unsuccessfully carried Rem to safety while Subaru kept the demon beasts busy as Rem intentionally made the both of them fell over. After Roswaal eliminated the demon beasts and Subaru rested to recuperate, the boy noted that Rem would never be a substitute for Ram.

Some time after ending up in the new world, the twins adapted into being school students while Roswaal became Class 2's homeroom teacher.

One day, Rem chose "salt and pepper" to follow her sister instead of "mayo" like Subaru. During dodge ball game, the twins made a combo magic move. However, Mr. Rerugen declared it illegal.

Subaru
She has a massive crush on Subaru.

Albedo
Without understanding the situation, Rem got her classmate's attention, "You can fall in love, even with someone you just met". After introducing Subaru to her, Rem learned her name as Albedo. Later during class, Rem spoke out to Albedo, "I know. I get you, for real."

During the beach trip, they and Aqua played beach ball.

One day when having a drink, Rem was present when Albedo brought out that somebody gossiping about Shalltear's breasts were fake.

During a game in field day, Rem ignored Albedo who was laughing at Shalltear. Even so, Class 2 won the game against Class 3. Both Albedo and Rem expressed faith on Ainz and Subaru respectively before the cavalry game began.

During physical examinations, Rem used the chain of her flail to tie up Shalltear and Albedo to prevent the pair from sneaking off from the nurse's office to see Ainz. She made a suggestion to Shalltear and Albedo of giving their respective lovers private physical examinations in the future.

Shalltear Bloodfallen
After Roswaal assigned Rem to work with Shalltear as nurses, they were on descent terms with each other.

On the beach trip, Rem was clueless when Shalltear had a glance on her chest.

One day, Rem seemed to catch on to the notion about Shalltear's self-consciousness.

During field day, Rem did not laugh at Shalltear who held a sign written, "Big Breasts (Real)". Even so, Class 2 won the game against Class 3.

During physical examinations, Rem used the chain of her flail to tie up Shalltear and Albedo to prevent the pair from sneaking off from the nurse's office to see Ainz. After Rem suggested to the pair of giving their respective lovers private physical examinations in the future, they helped Wiz with taking physical examinations of the female students.

Megumin
During physical examinations, Rem politely made a note to Megumin, "Because your eye patch is on".