Akiomi meets Izumi and Makoto, and has what seems to be his first personal encounter with Arashi. Izumi is also transferred to Akiomi's agency on the same day. At this time, Akiomi is a third year in middle school; Makoto is about 4, Arashi is probably 3, and Izumi is probably 5. By now, Makoto is the most popular kids model in the industry
Akiomi goes looking for Jin on the day of a Ryuseitai live. Jin is a third year, and Akiomi is a first year
Jin is preparing to debut in a tokusatsu show. By now, he is already considered a super idol
Hokuto mentions that "the holidays" are a peak season for idols, indicating that this is December. Jin is a third year at Yumenosaki. At this point, Jin doesn't know that Akehoshi got married or had a child. Subaru is 5, and Hokuto has either just had his 5th birthday or is about to. Akehoshi has not yet been arrested. Hokuto says it will be Christmas "soon." Hokuto confirms in The Best Present 14 that this occurred on December 20
Jin wakes up at the family restaurant and catches Hokuto and Subaru sleeping
Rinne asks Hiiro what kind of adult he wants to be, but Hiiro doesn't understand the question. It is not known what season this takes place in, but it is likely summer: the info card for the chapter notes summer, referring to the present, so this may be attributed to the memory as well
Hiiro tries to respond to Rinne's question from Tumultuous Times 57, then rescinds his answer thinking it's incorrect. This likely takes place very soon after Tumultuous Times 57. Rinne mentions later in the chapter that he hadn't yet gone to the city, meaning this is before the flashback in The Brightest Star 128. It is not known what season this scene takes place in, but it is likely summer: the info card for the chapter notes summer, referring to the reminiscence period, so this may be attributed to the memory within as well
Rinne sneaks out to go to the city, and Hiiro catches him. Rinne mentions that he's ten years old. It is not known what season this takes place in, but it is likely summer: the info card for the chapter notes summer, referring to the present, so this may be attributed to the memory as well. It must at least be in the summer of 2005, due to Rinne's age
Tsukasa meets Kohaku properly for the first time at his grandfather's funeral
Kohaku and Tsukasa talk in the Suou family courtyard
Kohaku and Tsukasa talk in the Suou family courtyard. 1 day after Sudden Death/Monologue 1
Takes place when Yuzuru and Ibara are children in a military camp. It is not known what season this takes place in, but it is likely spring: the info card for the chapter notes spring, referring to the present, so this may be attributed to the memory as well
Ibara oversees some dogs undergoing military training. Later, one of the dogs brings him some dog food to eat. It is not known what season this takes place in, but it is likely autumn: the info card for the chapter notes autumn, referring to the present, so this may be attributed to the memory as well
Niki rescues Rinne while on the brink of death by starvation, and Rinne repays him by swindling food out of Niki's neighbors and then moving in with him
Chiaki meets Kanata and later Keito, and also helps to reinstate the student council. They appear to be in school, so this would have to be during June
Valkyrie films for a TV show around the end of the year
Jun begins school at Reimei Academy and immediately gets kicked around by special students. Jun and Kaname are first years, and Tatsumi is a second year. Tatsumi breaks into the non-special student opening ceremony to warn them about life at Reimei and to beg them to drop out
Tatsumi moves into the Takobeya with the non-special students, and Jun and Tatsumi formally meet each other for the first time
Eichi and Keito set a trap for Rei to take control over the rowdy Yumenosaki student body, but Chiaki gets in the way and foils their plans
Keito, Koga, and Rei all meet at Keito's house the day before before Rei goes overseas again
Rei and Keito meet in the student council room, and Rei proposes a little gamble between them at DEADMANZ Live
The events of DEADMANZ Live
Eichi and Leo meet while they're both hospitalized. At this point, Eichi and Tsumugi aren't yet familiar with each other
Details the events leading up to the war, from Eichi's perspective. Discusses Eichi's plan and his recruiting Tsumugi after being released from the hospital following the events of Crossroad, as well as Tsumugi meeting Natsume. Eichi is not yet student council president
A little while after the events of Crossroad, Rei meets Keito at his family shrine. Eichi does not yet seem to be the student council president at this time, but Keito implies that he's working toward that goal. Keito is currently in contact with Kuro at this point, but it's unknown whether Akatsuki is in talks yet
Valkyrie has a live, before the DreamFes system is established. By this time, the Five Oddballs have been named
Mika and Arashi have a conversation one day. Arashi says she has just joined Knights, so this takes place after the events of Checkmate. This is soon before Nazuna's birthday, which is April 27. By this time, yumecoin, the in-school currency, is circulating, and Arashi's unit is still known as Chess (or Othello)
Details the formation of ex-fine and Knights. Eichi confirms the Oddball lineup as including Shu and Natsume. By this time, the DreamFes and unit systems are established. Hiyori and Nagisa are not yet part of fine, and Eichi is still deliberating whether to invite them to join
The events of Checkmate live
Eichi and Ritsu meet following Checkmate Live, and Eichi tries to use Ritsu to bring down Rei. Mandatory club activities have just been established
Eichi finds out Ritsu has been lying to him about Rei, and then they decide to form tea club together
Natsume starts attending classes regularly again and invites Subaru to join the game research club with him on the same day it's set to be disbanded. Hokuto finally manages to join the theater club after many failed attempts. There is a rumor that club activities are mandatory, but it is largely unenforced. Ritsu mentions that Rei is probably going to be the president in the new, restructured student council
Nagisa has not yet agreed to be part of fine, but Tsumugi says that both he and Hiyori have signed the contract binding them to the unit. At this point, the Yao Bikuni is gaining traction at Yumenosaki, and negative rumors are beginning to spread about the Oddballs
Eichi talks to Rei about the formation of fine and invites him and the rest of the Oddballs to perform at fine's debut live. According to Eichi, Rei is still the student council president on paper at this time, even if he has already quit by now.
Details ex-fine before they debut and begin their idol activities in Eichi's new Yumenosaki Academy
fine's debut live. The Oddballs all unanimously turn down Eichi's offer to perform at the live
Events leading up to the war after ex-fine has debuted, but before Kurou joins Akatsuki. Mika presents Nazuna a birthday present. This is "pretty late" after Nazuna's birthday, which is April 27
Kaname (now going by HiMERU) is penalized and stripped of his status as a special student. As a result, he asks Jun to take him to Tatsumi's meeting in the catacombs, where they learn of Tatsumi's goals to create a utopia for idols
Wataru kidnaps Hokuto and takes him to see a performance of Romeo and Juliet. This is after Hokuto joins the theater club
Chiaki scolds Kurou for beating up members of Ryuseitai. This seems to be around the time that Kurou joins Akatsuki, since he mentions being stressed
The aftermath of DEADMANZ following the events of Crossroad, and the formation of UNDEAD. At this point, Souma has not yet joined Akatsuki
Kurou returns with a victory from a Dragon King Competition, which have been occurring almost daily now. Souma is finally accepted into Akatsuki
(Note: Shinsengumi retcons the existence of in-school currency (yumecoin) before this point, which conflicts with Reminiscence * Marionette/Girls Talk. Seeing how Marionette was the first war story published, I'm inclined to forgive this retcon)
Shows the derelict state of Yumenosaki and the effects of the Yaobikuni, from Chiaki's perspective. The Oddballs are still uneasy with each other and are not all friends quite yet. Stated to be at the beginning of summer and spans over a few days. During this time, Akatsuki officially forms, and they detail their plans for Kanata's execution
First 2 scenes. The exact time period of these scenes is unknown, but it takes place after Checkmate Live, but before Leo starts crumbling under the pressure of DreamFes, so it's probably in the summer
Shu and Kurou discuss the state of Yumenosaki and resolves to participate in DreamFes
The events of the Venus Cup, Wataru's play, and of Shu's execution, which all take place on the same day in that order
The aftermath of Shu's execution, as well as the events leading up to Kanata's exection and the execution itself
A flashback from Ritsu's perspective to the day Leo left school
The events of the day before Wataru's execution
The events preceding Wataru's execution, right before the live, the execution itself, and the immediate aftermath of the live
Nagisa has a dream about the day he takes a leave of absence from Yumenosaki. The dream takes place a few days after Wataru's execution
The aftermath of the war and the formation of Switch. Tsumugi burns the documents from the war. Blackbird takes place immediately after Pleiades Night/Monologue: Wataru visits Eichi in the hospital and tells him to rewrite a plan based on Natsume's plan
After Leo has stopped going to school, he thinks about his current situation and his regrets. The exact month is unknown, but it clearly takes place before Madara takes him on a trip around the world and at least somewhat soon after his falling out with Izumi, so I've placed it in December
Wataru says that Blackbird happened "the other day"
Ibara discusses Tatsumi's failed revolution with Hiyori and Nagisa after they transfer into CosPro-affiliated schools
(Note: The placement of this event is under the assumption that Hiyori and Nagisa would have transferred at the beginning of a new trimester, which is when most transfers happen)
Ibara discusses Tatsumi's actions with Kaname. By now, Nagisa has entered a contract with Ibara and therefore formed Adam. Jun breaks into a special student class to demand answers from HiMERU (Kaname), and HiMERU (Kaname) reveals that his mother is his god and guiding light, and also that he's following Tojou-senpai's orders
HiMERU (Ore) approaches Jun in the Takobeya to ask questions about HiMERU (Kaname). Jun notices that something is off, but still believes he's Kaname in the flesh. At the same time, Tatsumi and HiMERU (Kaname) form a unit for what appears to be the first time in Reimei history and offers a spot in their unit to anyone who wishes to join. HiMERU (Kaname) pledges his allegiance and life to Tatsumi, saying that he will become a martyr for Tatsumi's ideals. At the end of Tatsumi and HiMERU (Kaname)'s speech, HiMERU (Ore) warns HiMERU (Kaname) to escape, but the students of Reimei attack both Tatsumi and HiMERU (Kaname), hospitalizing both for their sustained injuries
Eichi has been hospitalized, but sneaks out to do work on campus. He makes Ritsu promise that he'll preserve tea club as a haven for them
UNDEAD gets ready for the butler cafe
Before the festival begins, 2wink, Valkyrie, and Switch all meet up to discuss their battle plan
Ryuseitai meet up at the food truck to get ready, and they all take their first shifts. in ch 7, Kaoru mentions that it's noon
Anzu finally shows at the butler cafe after Kaoru haggled her in the garden terrace in School Festival 4/ch 7
Mika passes out flyers for the haunted house at the start of the school festival. This is about the time Kaoru returns from soliciting Anzu to come to their cafe