Undine

* A few days after the monster encounter, Rei is apologizing to Claire for taking on a familiar.

* Rei has to balance between being a maid to Claire and taking care of Relaire.
	+ This deviates from the games plot as the protagonist spends most of their time with Misha.
* As Relaire is a baby water slime, she needs an abundance of nutrients and cannot easily communicate with Rei.
	+ Slimes do not make sounds until they reach maturity so young slimes tremble to show hunger.
* Relaire fits in Rei's palm and her size is convenient enough to hide in most instances.
	+ Relaire stays in Rei's bag and despite being a water slime, does not wet the inside or other contents.
	+ As Relaire is still learning, she often gets into trouble due to slipping out of Rei's bag because she was hungry.
* The game itself left enough lore and instructions that Rei is able to train Relaire.
	+ Apparently, training must be done thoroughly while slimes are young.
	+ Rei has focused on toilet discipline and proper feeding times.
* Due to the nature of the training, Rei can only work with Relaire in her dorm.
	+ This causes Misha to be the first to learn of Relaire's existence.
	+ Given a proper rationalization, Misha is understanding of the situation to the point she aids in training.
* At this particular time, Claire stumbles upon Relaire while looking for her brush.
	+ In her surprise, Claire shrieks loudly but Misha uses wind magic to cancel the noise.
	+ Claire is not as easy to convince as Misha, focused on the fact that Relaire is considered a monster.
		- Rei empathizes that this fear comes from the fight she had just endured.
	+ Misha's involvement surprises Claire and is more convinced when Misha states that Relaire is docile.
* Claire wonders where Relaire's name came from to which Rei excitedly declares the name to be a "fruit of their love."
	+ They continue to flirt while Rei makes one last push by showcasing Relaire.
		- Rei first attempt to persuade with Relaire's cuteness.
			* Claire does not find it cute and plans to have Tred-sensei exterminate it.
		- Rei's second attempt consist of showing tricks: Wait, Sit, Bow, and Spin.
			* Claire is unmoved as the movements are so small that it seemed nothing changed.
			* Misha seems to agree as well.
		- Rei's final attempt involves Relaire performing Undine.
			* Relaire slowly changes her form to resemble Claire.
			* Undine is a water spirit that appears in fairy tales, brining water blessings to people.
				+ Rei explains that spirits are different from monsters and, while more of an idea, it is well-known within the kingdom.
				+ This is also the first mention of The Spirit Church but at this time it is left vague.
			* Claire asks why does Relaire look like her.
				+ Rei half lies stating that water slimes often imitate beautiful women.
				+ The full truth is that water slimes imitate their surroundings as a way to protect themselves.
				+ At this point, Claire admits that Relaire might be cute.
* A fully convinced Claire stops her plan and warns Rei to properly train Relaire.
	+ In addition, Claire instructs Rei to introduce Relaire to everyone.
	+ Finally, Claire demands that the name be changed but Rei admits that familiars never forget their name.
		- In reality, it's based on the game mechanic that name changes were not allowed.
		- In that case, Claire forbids Rei from explaining the meaning of Relaire.

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