Being much darker with a bigger focus on the trauma of fighting Hell, Remnant Inferis: DOOM manages plenty of these moments.
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- Ozpin and Glynda seeing what the demons do to their students. Ozpin's rage that he couldn't save his students is made clear with Glynda's horror being almost palpable, and the hope that they could save at least one is dashed the minute it's shown they have become a Possessed. All Ozpin can do is apologize to whatever lingering humanity may be left and kill them. Perhaps the most saddening thing is that throughout this entire ordeal, Ozpin displays zero emotion, as if he's seen this so many times that he's just going through the motions at this point.
- As the story progresses, Ruby starts losing her sanity and becomes more and more like the Slayer, whom she heavily wants to prove herself to. It's saddening to watch the once idealistic young girl who just wanted to help people devolve into a psychopath like the one she looks up to.
- When the Slayer sees this, he briefly becomes guilt-ridden that he failed to keep Ruby safe. He never wanted anyone, let alone the idealistic girl who he's come to see as a sister, to turn out like him. And now it may be too late for her.
- When in Hell, the amount of blood-lust and sadism she displayed frightened even Yang. She even admits as much to her. It's downright heartbreaking for Yang to have to admit that she's terrified of what her sister is becoming.
- Jaune having a breakdown due to VEGA giving him and his team the responsibility of guarding Beacon and the Fall Maiden. It serves to remind the reader that when all is said and done, he, like his teammates, are just kids, and none of them asked for this nor expected it.
- When Jacques has Arthur Watts tether the Slayer away, it proves to be the biggest Break the Cutie moment for Ruby, who breaks down into anguished shouts and crying as her Living Emotional Crutch is taken from her right before her eyes. It's heartwretching to see the young girl finally break down, and although it was already close to happening, losing the Slayer, no matter how temporarily, proved to be the final straw. When she's next seen, her identity as the idealistic young girl who wanted to help people is pretty much hanging by a thread.
- After Weiss punches her father in the throat, Whitley starts out shocked, then rushes to his father's side not because of love or care, but because he reminded himself that he wasn't playing the role of The Dutiful Son. It's an effective reminder of how far Jacques' abuse has affected his family.
- The Slayer was forced to kill SDC members in Chapter 26. Even after losing his faith in humanity, he still told the guard not to try and arrest him. He's a merciless killer, but he never hurts someone without an reason.
- In the same chapter, he kills a female SDC guard, cutting her in half with his chainsaw, but she was still alive and tells her sons that "mommy loves you". This shocks the Slayer so much that he gives her a fast death with his pistol to spare her from any more pain. Even with how horrible some SDC members are, they're still people with loved ones and families.
- When Whitley greets his mother, while he tries to hide it, he's frustrated that there's no warmth between them, reminding the audience that Whitley's just a lonely, manipulated child who just wants to be loved.
- In Chapter 29, the Slayer threatens to leave for good when Ruby accidentally causes him to lose his chance to kill Deag Nilox, causing Ruby to almost cry. It's just depressing that after everything Ruby's had to go through, she's become so co-dependent on the Doom Slayer for emotional support that just the thought of him leaving is enough to drive her to tears.
- Taiyang's reaction to his daughters when they reunite. It's clear that he absolutely loves them and wants to help them, but they've both become so radically changed by their experiences fighting Hell and attached to the Slayer (whom he blames for what happened to them) that he doesn't know what to do anymore. He actually struggles not to break down in tears and just mutters that he doesn't understand.
- Weiss disowning her family after all that happened. When Winter confronts her on it, it's clear that the eldest Schnee was heavily hurt by it, and Weiss realizes that nothing will ever take what she said back.
- After everything that went down in Epsilon, Ruby breaks down in her father's arms from the aftermath of her previous actions, calling herself a horrible person for what she did.
- Jaune's breakdown to Pyrrha about how he cheated his way into Beacon, only this time it's anger and frustration about how little he matters to what's going on. The entire thing shows that he's painfully aware of the fact that he's pretty much a side character in someone else's story and that in the end, he doesn't matter to the conflict despite the progress he's made.
- Making matters even worse, canonically, when he was brought to the roof by Pyrrha, he joked that while depressed, he wasn't depressed enough to actually contemplate suicide like he jokingly assumed Pyrrha was suggesting. Here, he actually attempts to go through with killing himself. Granted, it's because the demonic voices in his head were goading him and thankfully Pyrrha stops him from going through with it, but it really shows how little he thinks of himself.
- The Slayer destroying Epsilon. VEGA outright tells him that he can't undo what will happen, but despite his reluctance, the Slayer continues. Thanks to the sheer amount of devastation his actions will cause for the kingdoms, Atlas has labeled him an enemy and the world now wants him dead. The closing scene of the chapter punctuates this. Once more, he's left to continue his endless crusade alone, with no one coming to help and no one to rely on.
- When Winter leaves with the Atlas forces, Weiss calls out to her. The elder sister doesn't even say goodbye, leaving Weiss to the painful realization that all she did was push her family away.
- When Heather calls the Slayer out on how his actions have all but near ruined Remnant thanks to Grimm rampancy consuming everything, the Slayer doesn't say a word, but it's shown that he absolutely hates himself for all the pain and torment he's indirectly put everyone through. Despite his thought process trying to paint what he did as necessary and everyone else just needing to get over it, it's clearly shown that he's just desperately trying to convince himself of that, and utterly failing.
- Gretchen's death, despite all she'd done previously, is rather harrowing. When critically wounded by both Jaune and Hazel, she's hurling insults and disparages at her brother. However, the realization that she's about to die begins to set in, and she's reduced to crying as her brother comforts her in her final moments.
