History Heartwarming / SummerWars

* When using the "Flood the Castle" tactic on Love Machine, there is an adorable shot of Kazuma holding his toddler cousin Kana on his lap. Just by seeing it, you know Kazuma going to be a great big brother when the time comes.

* When Natsuki [[spoiler:loses the 49th round and doesn't have enough accounts to continue the game and all seems lost, a boy from Germany shows up to offer his account. Within seconds, people from around the globe offer their accounts so Natsuki can defeat Love Machine. According to Sakuma, it was about 13.837% of OZ's total subscribers, over 150 million accounts. Cue TearsOfJoy.]]
--> [[spoiler:"Please protect our families."]]
* [[spoiler:Sakae's final conversation with Kenji before her death. What made it even more bittersweet is the fact that she had faith in him the whole time]].
* The scene where Natsuki [[spoiler: asks Kenji to [[HoldingHands hold her]] and [[TryingNotToCry make "them" stop.]] Just as he's about to ask what she means, Natsuki extends her hand to him and begins to cry. The dam breaks, the moment he touches her hand.]] Also doubles as a TearJerker.

* Even though Shota [[spoiler: taking ice away from the super computer was a big mistake, it was still very sweet of him to do so because he wanted to keep Granny Sakae's corpse cool.]]
* Seeing Wabisuke's [[spoiler: reaction to Sakae's death was pretty touching. After Natsuki calls him with the news, he DrivesLikeCrazy back to the house, pulling up in a wrecked and dented car, screaming if it was true.]]
* [[spoiler:The reading of Sakae's will]] combines this with a good TearJerker.
** When Wabisuke showed up, the first thing she asks him is, "Have you had anything to eat?" [[spoiler: According to her will, the worst things are being hungry and being lonely. She's glad that he's back so she can fix both.]]
* When the missile [[spoiler: falls just short of its path, that moment when the entire family shields each other in one huge embrace.]]

** [[spoiler: [[{{Adorkable}} That kiss]].]]
** [[spoiler: It's an EverybodyLaughsEnding- even granny Sakae's portrait changes to show that famous toothless grin we saw her make before passing on.]]
** When the family finishes singing [[spoiler: to Granny Sakae's picture at her funeral, you can hear Kenji say, "Happy birthday! Thank you for believing in me!" as the family cheers.]]
* In the manga, the extra/epilogue [[spoiler: when Natsuki reveals that she wanted to get into Tokyo U because Kenji applied to go to Tokyo U as well.]]
* While also a TearJerker, [[spoiler:the funeral becomes one when you look at the length of the line.]] And remember that aside from the family members who were planning to come anyway, all those people seem to have managed to get there overnight, even though the country is probably still disrupted. [[spoiler:It shows just how much Sakae was loved.]]

* The fact that Oz's virtual guardians are names after John Lennon and Yoko Ono, a couple who's public image symbolized love and optimism. It's the cutest thing in the world.
* Natsuki's whole reason for bringing Kenji? She thinks this might be Sakae's last summer and wanted Sakae to not be worried about her and how she was doing and knew her seeming to have a fiance would help with that. She just wanted Granny Sakae to be happy.

* The ending scene

* When Natsuki [[spoiler:loses the 49th round and doesn't have enough accounts to continue the game and all seems lost, a boy from Germany shows up to offer his account. Within seconds, people from around the globe offer their accounts so Natsuki can defeat Love Machine. According to Sakuma, it was about 13.837% of OZ's total subscribers, over 150 million accounts.]]

* Even though Shota [[spoiler: taking ice away from the super computer was a big mistake, it was still very sweet of him to do so because he wanted to keep Granny Sakae's corpse cool.]]

* Natsuki's whole reason for bringing Kenji? She thinks this might be Sakae's last summer and wanted Sakae to not be worried about her and how she was doing and knew her seeming to have a fiance would help with that.

** : When Wabisuke showed up, the first thing she asks him is, "Have you had anything to eat?" [[spoiler: According to her will, the worst things are being hungry and being lonely. She's glad that he's back so she can fix both.]]

** [[spoiler: [[{{Adorkable}} that kiss]].]]

* Even though Shota [[spoiler: taking ice away from the super computer was a big mistake, it was still very sweet of him to do so because he wanted to keep Granny Sakae's cool.]]

** It becomes more of a TearJerker and HarsherInHindsight thing when [[spoiler: you consider that Sakae wrote her will BEFORE Wabisuke first came over, and before the whole mess with Love Machine. She still regarded him coldly regardless, but pretty much speared him out when she found out he made Love Machine, the AI that messed up all orderly conduct in Japan's traffic and jobs, for money to win her approval. Would she really have written the letter the same even after driving Wabisuke away, hours before her death?]]
*** [[CoolOldLady Hell yeah she would.]]
*** Another HarsherInHindsight moment: When Wabisuke showed up, the first thing she asks him is, "Have you had anything to eat?"

* The ending scene and [[spoiler: [[{{Adorkable}} that kiss]]. Plus, it's an [[EverybodyLaughsEnding]]- even granny Sakae's portrait changes to show that famous toothless grin we saw her make before passing on.]]
** Also, when the family finishes singing [[spoiler: to Granny Sakae's picture at her funeral, you can hear Kenji say, "Happy birthday! Thank you for believing in me!" as the family cheers.]]

* The ending scene and [[spoiler: [[{{Adorkable}} that kiss]].]]

* The scene where Natsuki [[spoiler: asks Kenji to [[HoldingHands hold her]] and make "them" stop. Just as he's about to ask what she means, Natsuki extends her hand to him and begins to cry. The moment he touches her hand, the dam breaks.]]

*** Another HarsherInHindsight moment: When Wadisuke showed up, the first thing she asks him is, "Have you had anything to eat?"

** It becomes more of a TearJerker and HarsherInHindsight thing when [[spoiler: you consider that Sakae wrote her will BEFORE Wabisuke came back, and before the whole mess with Love Machine. She still regarded him coldly regardless, but pretty much speared him out when she found out he made Love Machine, the AI that messed up all orderly conduct in Japan's traffic and jobs, for money to win her approval. Would she really have written the letter the same even after driving Wabisuke away, hours before her death?]]

* CrowningMomentOfHeartwarming:
** [[spoiler:When Natsuki loses the 49th round and doesn't have enough accounts to continue the game and all seems lost, a boy from Germany shows up to offer his account. Within seconds, people from around the globe offer their accounts so Natsuki can defeat Love Machine. According to Sakuma, it was about 13.837% of OZ's total subscribers, over 150 million accounts.]]

** [[spoiler:Sakae's final conversation with Kenji before her death. What made it even more bittersweet is the fact that she had faith in him the whole time]].
** Seeing Wabisuke's [[spoiler: reaction to Sakae's death was pretty touching. After Natsuki calls him with the news, he DrivesLikeCrazy back to the house, pulling up in a wrecked and dented car, screaming it it was true.]]

** [[spoiler:Sakae's final conversation with Kenji before her death. What made it even more bittersweet is the fact that she had faith in him the whole time]].