- Volume 1
- The series has a somewhat understated yet believable Downer Beginning, with Haruyuki being bullied at school. Worse, still, while Taku and Chiyu would normally serve as a support network, his personal issues end up causing him to distance himself from them, damaging the two longest-running friendships he's had.
- When tensions come to a head between Haru and Kuroyukihime, Haru ends up getting fed up and asking if she's only spending time with him in order to punish herself. His remarks hit very close to home and upset her to the point at which she tearfully slaps him and calls him an "idiot" rather than a "fool". It's driven home even further in the light novel, in which Haruyuki realizes that this isn't Kuroyukihime as a notorious and skilled Burst Linker, but Kuroyukihime as a fourteen year old girl, and he realizes just how much he's hurt her.
- When Kuroyukihime's injured and on the brink of death, her parents don't even bother to show up, and simply send a lawyer in their stead, giving the first indication of how unhappy Kuroyukihime's family situation is.
- Volume 2
- Immediately after performing a Mercy Kill on Cherry Rook, Scarlet Rain tells the story about how they met at a boarding school, where Cherry became her first friend, as well as her parent and mentor on Brain Burst. She then admits that she realized, too late, how he wanted to always be her parent, and regrets not telling him that levels don't matter.
- Volume 3
- Taku confronts Haru over what happened with Noumi, but Haru, afraid of what will happen if Taku finds out, isn't able to tell him, leading to an argument between the two friends and Taku hitting him.
- Volume 4
- The revelation that Taku was severely bullied in the past, to the point at which he contemplated suicide. Apparently, thrusting attacks are such a severe Trauma Button for him that he has no hope of continuing kendo in high school.
- Haru meeting with Chiyu, who, in order to keep up her facade of working for Noumi, is forced to act as though she betrayed him.
- Volume 7
- Saffron Blossom and Chrome Falcon's backstory. They wanted to create a world where players could enjoy the game together, since given that Saffron Blossom would likely die young, she could only live a full life in the Accelerated World. For their trouble, they end up being sacrificed to a powerful Enemy to be killed repeatedly, while many other Burst Linkers, their fellow outcasts in the real world, callously watch.
- Volume 9
- For a moment, Silver Crow thinks Black Lotus(actually Black Vise in disguise) betrayed him and is trying to kill him to remove the threat of Chrome Disaster. It doesn't last, but it's heartwrenching to see him trying to convince himself and the Disaster Armor that the person before him isn't Kuroyukihime.
- Volume 11
- Utai/Ardor Maiden's backstory. She wanted to be a Noh performer, but was not allowed to continue into adulthood, simply because she was a girl. Her older brother tried to intercede on her behalf, but was killed in a tragic accident with a mirror that traumatized Utai so badly that she lost the ability to use her voice for anything other than the Burst Link commands (which takes a great deal of effort on her part).
- Volume 12
- Kuroyukihime's backstory. Her older sister tricked her into killing Red Rider, thus destroying her own reputation and becoming a notorious criminal in Brain Burst. After confronting her sister with a knife, Kuroyukihime got kicked out of the house, while said sister got off scot-free. Shortly thereafter, Nega Nebulus raided the Imperial Palace and got forcibly separated. Because of a few bad decisions, Kuroyukihime lost almost everything.
- Volume 13
- Haru is forced to come to grips with the fact that the only way to save Rin from the side-effects of the parasitization of Ash's motorcycle may be to use the Judgment Blow on Ash Roller. That would be bad enough in most cases, but considering that Ash is his separate individual, it's essentially killing him.
Tear Jerker / Accel World