This is a timeline of events that occur in Shinrai: Broken Beyond Despair, from years before the game to the fateful Halloween party. Be warned: all spoilers are unmarked.
Pre- 2010
- Many years before the start of the story, Kotoba tries to save Taiko from bullies, resulting in the two becoming friends. At undetermined points in the past, Raiko and Nobara, as well as Runa and Rie, become friends. Hiro aces a test, and the success goes to his head.
- August 11, 2006: Kamen is falsely accused of shoplifting, but Raiko manages to prove her innocence. The two spend the day together and Raiko promises to see Kamen again.
- August 12, 2006: Raiko and her family go on a trip to Yamabiko for Raiko's birthday.
- August 14, 2006: Raiko's sister Reiko dies.
- August 18, 2006: Kamen waits for Raiko in the park, but Raiko does not show up.
- April 2008-March 2009: Kamen and Momoko become friends while in seventh grade.
- At some point during middle school, Runa and Rie start inviting Raiko and Nobara to lunch.
- Spring 2010: At the start of the school year, Kamen meets Raiko again, and sees that she is a changed person.
- Some time in 2010: Momoko finally opens up to Kamen.
September 2010
- September 1, 2010: On the first day back from school, Runa twists her ankle in a bike accident, and Hiro helps her.
- September 6, 2010: Runa recovers and returns to school. Hiro starts asking her out.
- September 12, 2010: Hiro visits Runa at home and realizes that she is poor. The events of Genba No Kizuna take place.
- September 13, 2010: Hiro starts ignoring Runa.
- September 18, 2010: Kamen performs on the first day of the culture festival.
- September 19, 2010: Momoko performs in the cultural festival, becoming popular and gaining Hiro's attention.
- September 27, 2010: Hiro announces that he's going out with Momoko.
October 2010
- October 9, 2010: Hiro asks Kamen out, but she refuses.
- October 10, 2010: Kamen tries to warn Momoko to break up with Hiro, but Momoko refuses to believe her, threatening to end their friendship if Kamen persists.
- October 22, 2010: Kamen overhears Runa and Rie discussing their plans for a staged murder, and insists on getting in on them. After school, she tells Momoko about the plan. They have lunch in a restaurant, and Momoko finds out about Hiro's texts to Kamen while Kamen is in the bathroom. As a result, she snaps, plotting to murder Hiro and commit suicide to ruin Kamen's life.
- October 24, 2010: Momoko, having come up with her murder plan, approaches Kamen to convince her to use Rie and Runa's prank as an opportunity to play a prank on them. She also recruits Hiro for her plan.
- October 25, 2010: Momoko recruits Kotoba for the prank. offers to do a matching cosplay with Runa, who agrees to the suggestion in hopes of befriending Momoko. Runa, however, forgets her green wig.
- October 30-31, 2010: The main plot of the game takes place. Raiko, Nobara, Rie, Runa, Mika, Momoko, Hiro, Kamen, Kotoba and Taiko get together for a party at the Miyamoto Mountain Resort. Momoko kills Hiro(as well as Kotoba if you didn't make the right choices), and then hangs herself, intending to frame Kamen for her death. In the bad endings, Kamen or Runa is falsely accused and taken in for questioning, but later cleared. In the good ending, Raiko successfully clears Kamen's name.
November-December 2010
- November 1, 2010: The police interview the survivors. Kamen, depressed, refuses to speak to anyone.
- November 7, 2010: Momoko and Hiro's funerals are held. Kamen writes Diary Entry A, about her friendship with Momoko.
- November 11, 2010: Kotoba's funeral is held if he dies. If he lives, the police question him about the incident.
- November 13, 2010: Raiko visits her sister's grave. She talks with Kamen, who apologizes to and kisses her. Raiko's mother sees her, and talks with her husband about it that night in an extra scene. The game ends. Kamen writes Diary Entry B about Raiko.
- November 20, 2010: Raiko writes Diary Entry A after hearing about Hiro's childhood.
- December 23, 2010: The events of Withering Without Hope take place.
