Blueriver

Appearance
Blueriver is a small blue-gray tabby molly with river-blue eyes. Her fur is somewhat scruffy and thick — not well taken care of — with her markings being a darker shade of blue-gray and her triangular nose being even darker. She has a pale blueish-white chest, inner ears, and ear fluff. Her muzzle is long, her eyebrows are thin, and her chin is small and well-defined. There are bags under her eyes. She is also shorter than many of the cats in River Colony.

Personality
Blueriver is quiet and compliant as the result of having been bullied into submission her whole life. She isn't even aware of her sexuality, as she was never given the freedom to consider it.

As a kitten, however, Blueriver was bolder and more defiant, even standing up to Frozenpool and trying to protect her littermates from him on a few occasions. She was most likely punished severely for this, however, and the protective courage quickly disappeared. She broke quickly and never developed the same brutish nature as her siblings.

Pre-Series
Blue and her siblings, Rain and Ice, were born to Iceshimmer and Frozenpool in River Colony. Frozenpool watched the three with a strict eye. As Blue grew, she never developed the sinister and brutish nature that her littermates shared, and she picked up on the moral wrongness of how Frozenpool was trying to train them. She stood up to her father on a few occasions, hoping to defend Rain and Ice from him, but she was most likely punished severely for her defiance and disobedience. Her outspoken spirit was shattered, and she was threatened and pressurized into staying quiet and compliant by both her father and the siblings she had tried to protect.

Even once Blueriver was a ranger, Frozenpool pulled the strings on her social life, finding an unbound renegade that would soon join River Colony and become Pineclaw, Blueriver's arranged mate. The two did not court and Blueriver didn't hold any romantic feelings towards the tom, but Frozenpool forced them together nonetheless, and Blueriver gave birth to their kittens: two toms, Pine and Snow, and a molly: Umber.

While the kittens were still young, Rainfall decided to make the nursery her own den, forcing them, Blueriver, and the other keepers to move out. Pine made a fuss, not wanting to leave, and was severely reprimanded by Pineclaw, much to Blueriver’s dismay. Blueriver did her best to keep Pine quiet and out of trouble, which satisfied Pineclaw for the time being, believing his discipline had worked.

Pineclaw
Blueriver is in an arranged relationship with her mate, Pineclaw. She does not have any romantic feelings for him, and they never courted. The two have three kittens: Pine, Umber, and Snow.

No specific details about their feelings for each other have been given, but based on other information and inferences, it can be assumed that Blueriver is subservient to his stronger personality as well. He was said to “harshly discipline” their kittens when they displease him, and so Blueriver most likely tries her best to keep him content.

Rainfall and Iceclaw
Rainfall and Iceclaw are Blueriver's littermates. When they were kittens, Blue seemingly cared about them a lot and felt protective of them, as she tried to defend Rain and Ice from Frozenpool's wrath. Now, Rainfall and Iceclaw seem to have forgotten this, and prefer to ignore the fact that they share a bloodline with Blueriver. They, along with Frozenpool, arranged Blueriver's relationship with Pineclaw for her.

It is unknown how Blueriver currently feels about them, but it is highly likely that she fears or despises them. She is well aware of how Frozenpool trained them, and chances are that she knows about or at least suspects that they are behind the disappearing cats in the Colony.

Rainfall and Iceclaw clearly don’t give a rat’s tail about Blueriver, at least; setting aside the fact that they’ve been monopolizing her relationships, Rainfall had no qualms about moving into the nursery on short notice, not caring that she was leaving her sister, nephews, and niece without a den. They all act as though she is not related to them while keeping their iron grasp on her life.

Frozenpool
While Rainfall and Iceclaw have been explicitly stated to have been trained in private by their father Frozenpool, it is currently unclear if Blueriver went through such training as well. Frozenpool didn't get Blueriver into a leadership position, but he did arrange her relationship with Pineclaw, something Blueriver is not too fond of. Frozenpool controls Blueriver's social life, threatened her into a subservient shell, and forced her to continue his legacy by bearing Pineclaw's kittens. As with her littermates, Blueriver most likely hates him or is afraid of him, yet submits to his wishes anyways. She often wonders if her fate would have turned out differently if she had not stood up to him as a kitten.

Snow, Umber, and Pine
Pine, Snow, and Umber are Blueriver’s kittens with Pineclaw. Blueriver loves her kittens deeply, but is bitter against the circumstances that brought them to her. When Pineclaw “harshly disciplines” them for anything, Blueriver does her best to make sure the situation doesn't get too out of hand, anxiously thinking back to the brutal training that Frozenpool put her own siblings through.

Trivia

 * TennelleFlowers has said that Blueriver will be explored more in the future, gaining a larger role in the story.