Steins;Gate/Heartwarming

Anime

 * The relationship between Okabe and Mayuri can be summed up as this; they grew up together from a young age and share a bond that is akin to brother and sister. Okabe in particular is always wary of Mayuri's safety, while Mayuri is always looking out for Okabe's happiness and wellbeing.
 * Episode 3: Mayuri's excitement upon discovering that there is another girl joining Future Gadget Lab. First thing she does when Kurisu introduces herself as the newest Lab Member? The former runs up to her and gives her a great big hug.
 * In Episode 9, Kurisu bursts into tears after an argument she had with someone over the phone. As she sobs into Mayuri's Upa cushion, Okabe tells her that he values her as a friend, and she can tell him anything. Now granted, he only said that to bait a reaction out of her, but even still, she is no less touched by this gesture. She brings this up later during a confession she makes to Okabe, so what he said wasn't just some throwaway line.
 * Even better is that Okabe reveals during a power outage that his inability to make friends is the reason he formed the Future Gadget Lab in the first place. Kurisu also tells him that while the FG lab is nothing compared to what she's used to, she admits that she feels more at home here than anywhere else.
 * Episode 10, Kurisu decides to open up to Okabe about her strained relationship with her father. He, in his usual goofy fashion, offers to help mend her broken relationship with her dad by offering to take her to him to patch things up. It is another touching moment between the two characters. Until...
 * ...Cue Mood Whiplash though as the next scene they're in, she's scolding him for eating one of her snacks!
 * Many interactions between Okabe and Kurisu in the second half of the TV series, particularly:
 * In episode 14, when Kurisu makes a Mad Scientist impersonation (complete with Insane Laugh) in order to cheer Okabe up.
 * In Episode 16, Daru tries to get a copy of the badge Suzuha gave Okabe in order to give her some hope of finding her dad by at least pretending to fill that role. Granted, he'd be lying to her and giving her false hope, but he had good intentions, so it is hard to fault him for that.
 * Turns out
 * In episode 22, the whole scene where Okabe.
 * In episode 23, when Okabe meets Kurisu again . Doubles as Tear Jerker.
 * Episode 24 ended with all of the side cast closure, and wrapped up their arcs nicely, with Okabe giving all of them Lab Member badges, which are inscribed with each member's initials.
 * He even gives one to Moeka, keeping his promise of forgiveness for her transgressions in other world lines.
 * He also keeps one badge in a box for
 * The final line in episode 25, an obvious Call Back to episode 22

Film

 * Okabe invites the gang over for a rooftop barbeque. His reason? He heard "a certain wayward assistant" was back in town.
 * Though she was drunk at the time, it was lovely to see a softer side of Kurisu, as she starts flirting with Okabe, rubbing his cheeks, and cuddling him.
 * Mayuri tells Okabe about the dreams she'd been having in which she died over and over, with him there to save her. In another touching moment between the two, he tells her not to think about it, and he proceeds to hold her in his arms, which Mayuri appreciates.
 * It turns out that Kurisu did get Okabe a present after all: a fresh lab coat. Cue her ever present Tsundere act afterwards, but still.
 * In fact, one drama CD (forgot the name of it) that takes place a week before the movie all but confirms this. Both are shopping for a present to exchange when Kurisu eventually arrives in Akihabara; they seek advice from Mayuri, who quickly realises they are looking for gifts for each other, once again despite their denials.

My Darling's Embrace

 * The relationship between Moeka and Mr. Tennouji is much more genuine this time around, as he is her foster dad, and he gives her the same respect and support as he does his own daughter, Nae. A real example of What Could Have Been if he had connected with her as himself rather than as FB.
 * Hell, the relationship she forms with Okabe over the course of her path is this; he takes her out to the movies, a small café, and a few dating spots, etc. She even invites him to her apartment at one point. Observant players will notice that she talks a lot more when she's around Okabe, especially when they are alone together.
 * It's not just in her story either, she's not as reliant on text messages as she is in the original visual novel and will speak up when offering ideas without being prompted.
 * Once Moeka bares her emotions after some encouragement from Okabe, he gives her one final reassurance that he and the other lab mems will be there for her no matter what. Given how she reacts to this, they are the words she had most likely been longing to hear her entire life, and Okabe knew exactly how to get them across.
 * At the end of her route, we finally get to see Moeka with a smile on her face, and it is as cute as Ruka says it is. What's more, that same CG is also an unlockable wallpaper for Okabe's phone.
 * Unlike with the other girls in the lab, Okabe makes no effort to hide his relationship with Moeka once they put two and two together.
 * We get to see the real Faris again in her route. She removes her cat ears and begins to reminisce about the time she spent with her dad, and she and Okabe share a fondness for retro PCs. She goes gaga over a selection of old computers when Okabe takes her shopping.
 * The CG we are treated to of Okabe rubbing her head? Just adorable!
 * Okabe showing concern that Faris might be overexerting herself trying to keep May Queen afloat, and the other Lab Mems offering to lend her a hand.
 * Faris giving Okabe a kiss after he says her real name (along with the accompanying CG) is a sweet moment, though it doubles as funny just because of Okabe's reaction and of course, Faris reverting to form immediately afterwards.
 * Suzuha giving Daru a hug is adorable, even if it is the main source of conflict in her route.
 * Suzuha leaving a kiss on Okabe's cheek as a charm, so he doesn't forget her.
 * Daru's fateful encounter with Yuki is brimming with Adorkable, Meet Cute, and Love at First Sight.
 * Pretty much everything about Mayuri's route qualifies, but specific highlights include:
 * The Lab Mems simply going about their daily lives, even having a day out at a local amusement park.
 * Mayuri saving Okabe's life after he nearly drowns.
 * The entire photoshoot sequence, and the back and forth between Okabe and Mayuri.
 * Okabe asking Moeka to help him obtain the Christmas Star from the photoshoot to give to Mayuri as a present.
 * The scene at the cemetery, where Okabe professes his love to Mayuri, the voice performances that make the scene that much more powerful, Mayuri receiving Okabe's gift, and the CG of the two sharing a passionate kiss under the sunset.
 * Okabe and Mayuri's reunion at the festival at Yanabyashi Shrine.
 * Just the general theme of this route: Two childhood friends who come to realise their deeper feelings for each other.

Linear Bounded Phenogram

 * Kurisu is genuinely concerned about Okabe's mental and emotional wellbeing after the lab is raided, and when Mayuri is confirmed dead in a news report. She is so worried about him in fact, that she willingly sacrifices the chance to rebuild her relationship with her father just for his sake.
 * The sisterly relationship that Faris and Suzuha form in "Superhero Chat Noir". They share similarities with each other such as absent fathers and spend most of their time running around Akihabara as costumed superheroes.
 * As Faris crawls through a collapsed underground station to search for Suzuha, she overhears Tennouji's conversation with Okabe about her, particularly discussing her rough childhood had been and complimenting her resilience in dealing with adults. Her narration shows how much she had misunderstood how he viewed her.
 * Faris reunites with Suzuha, who is now 53 (having time travelled to 1975), closing out her story. It is a happy ending for Suzuha too, as that in that worldline, she lives beyond the year 2000.
 * As he awaits impending doom, Daru spends what would've been his last moments having a normal conversation with Yuki.
 * In Tennouji's epilogue, 12 years have passed since the story took place. At this time, Nae is now 24 years old, and the Ohiyama building still has the playroom on the 3rd floor; ending with her having a photo taken with little 6-year-old Suzuha (the person/thing missing in her life).
 * As her alternate selves vanish, Suzuha realises (along with her Beta self) that her Omega self is the best version herself that exists, seeing as how that version was the only one that got to live a peaceful life.
 * Despite being at war with herself, Moeka still forms a budding friendship with both Mayuri and Kurisu over the course of her story, even going so far as saving the latter from a hit that was placed on her.
 * She also asks Okabe to send FB a D-mail in the hope of saving her as she dies. She effectively rejects her recruitment as a Rounder to be with her friends, having realised how important they are to her.
 * This is more than likely to have happened once the D-mail is sent since: 1) Moeka awakens to the sound of Mayuri's voice, and 2) relationships remain intact when the world line shifts to accommodate the changes that occur.
 * Having lost her dad two years prior, Nae is taken in by Faris and her parents, and they treat her like one of their own, with Faris acting as a big sister to her.
 * Ruka choosing to throw away his ending from the original visual novel just to ensure that Mayuri will live.