Monogatari Season 4
S04 E01Oct 3, 2015
[64- 65] [EP1 - EP2] Ougi Formula, Part One Oct 3, 2015 Koyomi and Ougi find themselves trapped in a classroom, and the story shifts back to the point when Suruga introduces Ougi to Koyomi. Ougi approaches him with a mystery about a room not seen in the school's blueprints for them to investigate. When they enter the room, they find themselves trapped inside, leading them to their current situation. While talking about their predicament, the duo realize that the room is an oddity created by a traumatic memory from Koyomi's freshman years. Koyomi then tells Ougi that two years prior, the class president at his and Hitagi's class at the time, Sodachi Oikura, was looking for possible culprits of cheating on a math test, and would not allow any student to leave class until a culprit was found. Ougi surmises that they themselves won't be able to leave the room until the two-year-old mystery is solved.
S04 E02Oct 10, 2015
 [EP3] Sodachi Riddle - Part One Oct 10, 2015 In the aftermath of the previous day, Araragi is about to enter his classroom when Hanekawa informs him that a student absent all year is finally attending. The story pushes further into the past, as more of “what” makes Koyomi Araragi is revealed.
S04 E03Oct 17, 2015
 [EP4] Sodachi Riddle - Part Two Oct 17, 2015 Having rediscovered the room on the second floor of the ruined house, Koyomi tells Ougi of the events that happened there five years earlier.
S04 E04Oct 24, 2015
 [EP5] Sodachi Lost - Part One Oct 24, 2015 Hanekawa reveals her concerns about Ougi as she and Araragi go to visit Oikura.
S04 E05Oct 31, 2015
 [EP6] Sodachi Lost - Part Two Oct 31, 2015 Araragi and Hanekawa visit Oikura and learn the painful story of her family's past.
S04 E06Nov 7, 2015
 [EP7] Sodachi Lost - Part Three Nov 7, 2015 Ougi claims to have figured out the whereabouts of Oikura’s mother and, in her own way, helps Araragi and Hanekawa to solve the mystery.
S04 E07Nov 14, 2015
 [EP8] Shinobu Mail - Part One Nov 14, 2015 Koyomi Araragi waits in the ruins of the cram school to ask Suruga Kanbaru for help, a request he hopes she will refuse.
S04 E08Nov 21, 2015
 [EP9] Shinobu Mail - Part Two Nov 21, 2015 After a hurried departure from the cram school ruins, Koyomi and Suruga head toward the meeting place, only to encounter some difficulty along the way.
S04 E09Nov 28, 2015
 [EP10] Shinobu Mail - Part Three Nov 28, 2015 Having finally arrived at the meeting place, Koyomi and Suruga find an unexpected person waiting for them. Before their reunion can take place, they must face an unexpected foe!
S04 E10Dec 5, 2015
 [EP11] Shinobu Mail - Part Four Dec 5, 2015 The group relocates to the North Shirahebi Shrine where Izuko Gaen tells them the story behind the location and the effect Shinobu's first minion had on it.
S04 E11Dec 12, 2015
 [EP12] Shinobu Mail - Part Five Dec 12, 2015 Koyomi is confronted by Shinobu's first minion, the original apparition killer. But instead of starting a battle, the samurai makes a simple request.
S04 E12Dec 19, 2015
 [EP13] Shinobu Mail - Part Six Dec 19, 2015 As Koyomi prepares for his duel, he learns of the crisis that Hanekawa is facing and must decide what battle he should fight.