- Momoko's death. The other students frantically rush to save her, only for Mika to bluntly tell them that it's too late, and that she's dead. While it later turns out that she wasn't dead at the time, it gets even worse when you consider that no one, not even those who were in on her "prank," wanted her to die, but she was so broken that she felt the need to kill herself.
- Raiko and Momoko hit it off fairly well despite never having talked to each other much before, and Raiko realizes that with Momoko dead, they'll never have a chance to get to know each other. In fact, it's possible that if Momoko had more friends and wasn't quite as possessive of the few people close to her, she might not have taken Hiro's betrayal so badly.
- Nobara's breakdown during the questioning period. She's heartbroken over Momoko being gone forever and scared about any of the others being next. Raiko admits that she wasn't that close to Momoko, but seeing Nobara like this is heartbreaking.
- Kamen's breakdown after Momoko's death. The first time, when Momoko fakes her death, it's an act, but when Momoko actually dies, you can see that Kamen's utterly broken. Raiko notes that even though she dislikes Kamen, she still feels bad for her.
- Naturally, the bad endings, which often involve Kamen being arrested, and hating the surviving guests for not standing up for her when she needed it. If you accuse Runa of the crime, while she does get cleared, it ends up costing Raiko her friendships with Runa and by extension, Rie.
- In the bad ending in which you wrongly accuse Runa, when she's finally "cornered," she doesn't have a Villainous Breakdown; she simply gives up and sits in the corner until the authorities arrive, similar to the way Kamen shuts down.
- Raiko losing her sister. Reading Reiko's character profile shows that the sisters were close, and Raiko deeply regrets what she did, which apparently caused Reiko's death. To make matters worse, it's implied that Reiko might have committed suicide.
- In the aftermath of the party, Raiko notices that the school isn't quite the same without Momoko, Hiro or Kotoba around (the latter of whom is hospitalized if you saved him), even if she wasn't close to them. It can hit close to home for anyone who's lost a family member, a friend, or even an acquaintance, and realizes they'll never see that person again.
- In the ending, Taiko visits Kotoba's grave and notes that while Kotoba was an idiot who'd stalked Momoko and ended up become her accomplice, he misses his friend. If Kotoba lives, Taiko instead visits Momoko's grave, and tells her that even after everything she did, he still feels sorry for her.
- Kamen's Diary A, in which she outlines all her regrets when it comes to her friendship with Momoko, and that she blames herself for how things ended up.
- In Kamen's Diary B, when she gets accused of shoplifting after a pack of cards was slipped into her bag without her knowledge, an utterly terrifying experience for a girl in fifth grade. Even the store owner, whose shop she frequents, doesn't believe she's innocent until Raiko points it out.
- Kamen's Diary B and Extra Scene B give some idea of how much Reiko's death affected Raiko, as well as how much she changed. She used to be a cheerful and playful girl in the past, before becoming the grumpy and almost emotionless person you see for much of the game. The "new" Raiko has virtually nothing in common with the person she used to be, save for her strong sense of justice and willingness to stand up for the falsely accused.
- Simply put, the fact that as Raiko points out, all of the tragedy in the game- from Momoko's murders and suicide to the death of Raiko's sister- could have been prevented if people had been willing to listen to others and communicate. Virtually no one in the cast except for Hiro is a bad person, but they all make bad choices as a result of their own flaws, and those who don't lose their lives end up having to live with the consequences.
Tear Jerker / Shinrai: Broken Beyond Despair