I think this game needs a trigger warning for racism. The way Rell behaves toward Rina is incredibly reminiscent of some real life racist dynamics, in particular toward Black people. Rell repeatedly states that most of her suspicion and dislike of Rina is based on nothing concrete, but rather 'just feeling like something is off' or 'not liking her attitude' for reasons she can't quite describe. This 'feeling' escalates to paranoia and violence, ending with Rell attacking and killing Rina in one ending. Rell also repeatedly states that she feels like she has to protect the main character, who seems to be white, from Rina. In other words, Rell perceives the dark-skinned Rina as being a threat due to a vague 'feeling' that cannot be backed up with evidence, and feels she needs to protect her white crewmate from her, with lethal force if necessary. Presumption of guilt, being perceived as a threat, and being killed over it are real-life racist dynamics faced by, among others, Black and Arab people. I'm not sure if this was an intentional part of Rell's character, but regardless, I feel it would be good to warn players for it, since I imagine this plot point could be quite triggering to some.