Heartwarming / Devil Survivor

• In Atsuro's route, after defeating the Devas, the group heads over to Naoya's apartment to check on the progress he's made with the program. After talking a bit, Atsuro is still wrought with doubt... And then Naoya indirectly acknowledges Atsuro as his right-hand apprentice, a title that had been so far self-proclaimed by Atsuro. Cue Atsuro becoming completely motivated to kick the final boss's ass.
• A good number of Remiel's lines, "I... want to save all of you" being preeminent among them where he shows a real concern and love for humanity, even when other angels like Sariel are enormous pricks.
• In Amane's 8th day, seeing Naoya, of all people, pulling a Big Damn Heroes moment during the Final Boss was especially touching.
• Keisuke choosing to join up with the Power Trio at the beginning of Day 3, despite knowing that doing so would bring his death clock down to zero. Not only was he willing to risk dying to help them, he also knew they were the best chance to save Midori, so he decided it was worth the risk.
• Atsuro in general gets a lot of these moments throughout the game. For starters, he will never leave the MC’s side no matter what route he takes and will constantly support him through thick and thin.
• Crossing over with Funny Moment, Midori actually being able to convert a lowly Jack Frost into a believer of The Power of Love through nothing but genuine kindness and a passion for love and justice, to the point that he actually becomes BLACK FROST because of this, despite most Black Frosts relying on The Power of Hate to become that way in the first place. He'll stay true to his word and follow you, even on Naoya's route where Midori leaves the party.