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
Prior to the events of Isekai Quartet, Rem developed animosity towards Subaru as she could smell the "Witch's scent" in him and had been suspicious of him. She accompanied him to rescue the village children whom he befriended before entering her horned form that caused her to go on a rampage killing every Urugarum/Wolgram she saw. After Subaru saved Rem physically and emotionally, she fell in love with him and became his devoted follower. Since the breakdown in the relationship between Subaru and Emilia, Rem remained with him in the royal capital while Emilia and Roswaal returned to the Mathers domain. As Rem did not know what Subaru had been through that caused him tremendous amount of suffering, she turned down his proposal of running away to Kararagi where they could have a happy marriage life because he was not smiling when talking about their bright shining future before listening to him expressing how much he hated himself. Rem countered by recalling all his heroic qualities and kindness while unwittingly emitted light aura when she emphasized starting from zero to enlighten him. Despite expressing her love and faith in him, she won half his heart.

Due to whoever pressed the red button, they along with some others ended up in the new world that resembled Subaru's previous world. Subaru, Rem, her sister, and three others stumbled upon Classroom 2 that were filled with new faces.

On the first day of class, a teenage boy in the front row got Rem's attention and she brought Subaru to awareness, "That boy over there. He seems to be extremely interested in you".

One day during lunch time, Rem looked forward to the talent show in which it was possible for Subaru to perform, "Well it wouldn't give to learn all about your biggest secrets". Though not knowing the situation, Rem recalled how she fell in love with Subaru to Albedo before introducing him to their classmate, "It's this guy right here, he's very important to me."

The next morning, Subaru apologized to Rem for the delay of setting out to school and making her wait. She countered with, "It's fine. I didn't want to leave without you". Rem sped up to the point that Subaru could not keep up with her prompting to use her last resort, "Well then, I'll just have to carry you there". She used her flail to send Subaru flying into the air right to her and caught him when he landed onto her left shoulder. Rem suppressed Subaru's feeling like he was a baby, "I think this suits you perfectly and it really gives you the look of a nobleman". After seeing a young woman in a suit of armor carrying the teenage boy on their tails, Subaru politely asked Rem to put him down. Subsequently, both boys were tardy.

During talent show, Rem praised Subaru before he performed. As an opposite to her sister commenting on his performance of making "Tokyo Tower" with string as "lame", Rem attempted to comfort him, "No way, I loved it, Subaru. I have no idea what you made, but still ..." When Ainz started winter to end the talent show, Rem made an offer to Subaru, "How about a simple something to warm you up?" But, he politely declined.

The next morning after Roswaal putting the students in different committees, Rem asked about Subaru's animal care duty before being agitated when hearing that a large hamster chewed on the boy. He reminded her about Roswaal saying not to start fights and asked her about her nurse duty. Rem was then dismayed after telling him so, "Why didn't you come to me when that evil monster attacked you?" Despite he did not want her to worry, she then made a reminder, "Next time that happens, you come straight to me".

After the team Rem was assigned to completed the "Test of Courage", she became worried about Subaru when she and most of her classmates witnessed a powerful energy surge coming from position of the team he was assigned.

After the large hamster gnawed on Subaru again but in front of Aura, Ainz, and Tanya; it was unknown whether the boy sought Rem's help or not for medical aid.

During field day and before the cavalry game began, Rem said to Subaru, "You've got this, I believe in you". She watched Subaru's team reached a stalemate with Reinhard's team before both teams of students had to form an alliance against the team of teachers before her jaws dropped when a gigantic powerful destructive machine (that a few of her classmates revealed as the Mobile Fortress Destroyer) entered the scene. Rem watched Subaru's team taking on the Destroyer and Ainz launched him and two of his teammates into the air. After Subaru threw Tanya and Kazuma on another direction to distract the destroyer, Rem reassured Emilia, "Oh, don't worry. He'll be fine.  I know it.  But you've got to believe in him too." She watched Ainz caught Subaru before Tanya helped the team win the game by seizing the headband from the Destroyer.

When preparing for the test, Rem was part of Subaru's study group, "You're doing great, Subaru. I'm so impressed by you." After he recalled his "memories", she uttered, "So crazy".

During Valentine's Day, Rem gifted Subaru a large heart-shaped box of chocolate.

During the conflict of "what do you like on your chicken wings?", Rem was unhappy of the difficult choice of following her sister in choosing "Salt", "I usually agree with everything he says. But not this time, it's killing me".

Rem personally scheduled to give Subaru a private physical examination after she and Shalltear took physical examinations of the female students.

One day when class was over, Rem said, "Honestly, I would be lonely without you, Subaru. So let's go home". They, her sister, Emilia, Puck, and Beatrice saw "Visha" working in the butcher's shop part-time. According to Kazuma, Subaru and his followers worked part-time in the karaoke club.

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".