Here is a review for L0SERR-

My comments will be in bold

Basics and grounding

My first undertale character review, sorry if I'm a little rusty on the story, it's been a fair while since I've looked at this game.

Character information

There aren't really any problems here and this is actually very good as far as descriptions of appearance and personality goes. I really like the sound of her but I think you could add some more complex personality traits to really add to her.

Though I don't quite get the whole non-binary but uses she/her to feel 'human'. Whilst I respect everyone's pronouns and will refer to this character as her throughout this, be careful using the 'feel human' thing because that could come across as disrespectful.

Relationships

These all work fine as long as you develop them and they make sense in the grand scheme of things. Make sure they effect and develop the character.

Backstory

Alright so I think that there's potential for more with this character. You need to focus on adding more to her Backstory and adding more key events to her past in order to make her feel more fleshed out.

Stats

These stats are balanced so there aren't really any actual problems. However, being brutally honest doesn't necessarily make you trustworthy, you can be honest to someone's face but th at isn't good enough reason to trust them.

Final thoughts
Overall, this character's pretty good. Just add a couple of things here and there and this should work out well.

*My critiques are simply at your request and to help improve your character. It is not my intention to cause any offence and you, of course, do not have to listen to what I've said. This is all just a bit of fun and I apologise if I have done any kind of damage*