Episode 1
Reimu and Marisa travel to the underworld to solve the cherry blossom incident.
Episode 2
Sanae asks Reimu how she solved the Scarlet Devil Mansion incident. Marisa and Sakuya tells the story of the events. The story begins with Reimu Marisa reaching the mansion.
Episode 3
The story of the incident at the Scarlet Devil Mansion continues. Reimu battles Sakuya and Marisa battles Flandre Scarlet
Episode 4
The final battle is reached with Reimu and Marisa vs Flandre and Remilia Scarlet
Episode 5
A short episode that narrates some tales of the everyday lives of Gensokyo residents after the events of Phantasmagoria of Flower View and prior Mountain of Faith.
Episode 6
Komachi is found slacking off by Shikieki, eating lampreys at Mystia's stand next to Mokou, Keine, and Youmu. Komachi flees at the sight of Shikieki, who then starts talking to Youmu, but their talk turns into a sermon by Shikieiki.
Episode 7
A short episode that narrates the events of Touhou Hisoutensoku
Episode 8
The residents of Gensokyo begin to suspect that something is wrong with the moon, and that, the night does not seem to end. Marisa and Alice go out to find the culprit for this imperishable night.
Episode 9
Reisen attacks Alice and Yukari, using their illusion techniques. Meanwhile, Tewi distracts Reimu and Marisa in the hallway, telling them the story of Kaguya Houraisan and Eientei. Tewi succeeds and finally traps the two in a outer space like place. Eirin Yagokoro show up and attacks the two, starting a battle
Episode 10
Kaguya Houraisan appears and battles Reimu. The imperishable night incident is solved after the defeat of Kaguya Houraisan.
Episode 11
Episode 12
The Episode starts with Reisen expalining through a microphone what the trail is about to a crowd of a lot of familiar characters. Reimu is on the roof with Kaguya drinking sake and says she has no interest in the trial. Marisa is excited and talks to Sakuya who is apprehensive about the whole thing. It then cuts to Remilia walking through the forest alone, and then shoots some bamboo and reveals Mokou. The two banter and then begin to fight. Cutting back to Kaguya and Reimu, Kaguya reveals the Immortal youkai they are hunting on the trial is actually a human, much to Reimu’s surprise. They are then interrupted by Sakuya appearing and dropping a tied up Tewi and says that she learned the truth prompting Kaguya to get up and turn around with a sinister grin.
Episode 13
The Episode beings with Marisa finding the trail of destruction of Remilia and Mokou fighting. She then tries to get in on the action but Keine stops her. She lectures Marisa before turning into here Were-form. Then it cuts back to Kaguya who says theyve been found out faster then expected. The scene cuts back to Remilia and Mokou fighting and they are interrupted by Sakuya revealing the whole thing was a set up by Kaguya. Remilia had already impaled Mokou, however Mokou just regenerates the hole in her stomach. The scene then cuts to Kaguya and Mokou arguing and Kaguya says she does stuff like this to make their immortal boring life exciting. Mokou then says she’ll kill Kaguya a dozen times and Remilia and Sakuya says they’ll join. The scene cuts to Marisa knocked out on the ground in front of Keine and fire works go off over Eientei and the crowd.
Episode 14
The episode begins with Sanae showing up to the Hakurei shrine and challenging Reimu while insulting her Shrine. She then attacks Reimu and the Shrine and teleports away. Reimu then gets read for war and is incredibly angry. She instantly defeats the Aki sisters and flies past Hina. The Scene cuts to Ayas house and Aya wonders what the alarm is about. Momiji explains the situation. Marisa is revealed to be in Ayas house hanging out because she wanted to see stuff but Aya explains shes not actually supposed to be here and she cant leave the house lest they both get in trouble. Aya then flies off. In an aside Yukari is watching the events through a gap. Aya then stops Reimu to challenge her to a fight and the episode ends.
Episode 15
The Episode beings with Aya fighting Reimu, and she reveals shes using super speed to make it look like their fighting but she just wants to talk. She says she wants Reimu to defeat Kanako and make it look like she defeats her so she wont get in trouble and Reimu gets upset and blows her up. Meanwhile, Marisa find herself o the mountain and sees Nitori laughing at her in her camo device, however Marisa can see her and she smacks her. Nitori then shows her some other inventions like a missile that creates a whirpool that sucks them in. Marisa gets mad but the two quickly make up and Nitori agrees to help her get to the Moriya Shrine. The scene cuts back to Remi arriving at the Moirya shrine and after some banter Reimu and Kanako fight. The episode ends with a brief scene of Suwako drinking sake inside the shrine.
Episode 16
The Episode starts with Reimu fighting Kanako and Sanae. It cuts to Hatate and Aya taking photos of the fight from the bushes. All of a sudden the mountain shakes as Marisa gets to the Moriya Shrine thanks to a Kappa themed Drill tank that crashes into a tree and explodes launching her into a tree and Nitori runs away on fire. Aya remarks they should scold the Kappa later, but it probably wouldn't do anything. Marisa then joins the fight and immediately blows Sanae into a boulder using a master spark. Kanako is worried but then has to face Marisa and Reimu. Sanae tries to get up but then collapses only to be caught by Suwako who says that Sanae did her best and should rest easy. Suwako then joins Kanako to fight Marisa and Reimu saying that she didnt want to be on the sidelines anymore. The four of them fight and the episode ends with Suwako creating a giant rock hand about to crush Marisa.
Episode 17
The episode continues off to when Marisa was almost crushed, and Suwako creates a second hand to seemingly crush Marisa between the two. However then the hands explode and Marisa is surrounded by a barrier that Reimu created. Then Marisa uses the Mini-Hakkero to propel her broom and slam into Kanako which causes her to fall over and Reimu defeats them both with a Fantasy Seal. The scene cuts back to Ran and Yukari watching and Ran looks disappointed, and then Chen wakes up, apperntly having been asleep in her tails. Yukari also wakes up seemingly unphased by these turn of events. The scene cuts to Aya taking photos of the defeated gods and Marisa photobombing her. Kanako and Suwako talk to Reimu for a while and the scene cuts to the Moriya Shrine where they throw a party for a variety of charterers.
Episode 18
