[[caption-width-right:345:A truly professional fanime.]]

''Musou Kakyou: A Summer Day's Dream'' is a {{Fanime}} based off of the popular ''VideoGame/{{Touhou}}'' games. (Its official heading is ''Touhou Niji Sousaku Doujin Anime'', "Touhou Derived Work Indie Anime.") However, unlike most {{Fanime}}, this one has a significant difference: it was produced by the well-known [[{{Doujinshi}} doujin]] group MAIKAZE, who managed to gain a lot of notoriety with the project by roping in some ''very'' big-name voice actresses to help out (Creator/RieTanaka (Sakuya), Creator/KikukoInoue (the narrator), and Creator/MaiNakahara (Reimu), among others).

It's springtime in Gensokyo, and Reimu is preparing for the annual feast. But something is amiss, as she soon finds out -- the Hakurei Shrine's donation box has been stolen! And it's not just there, either; the Scarlet Devil Mansion and its library have been robbed as well. With the help of Marisa and Aya, can Reimu get to the bottom of this incident before the feast is ruined?

The first episode was released at Comiket 75, on December 29th, 2008, with the second episode being released at Comiket 82 on August 12th, 2012, episode 2.5 released on May 11th, 2014, and the third episode released August 13th, 2016; it was originally planned for a total of three episodes, but the end of the third episode suggested a fourth episode. The series was originally titled the ''Touhou Anime Project'', but was changed to its current name after ZUN, the creator of the games, expressed concern over it being mistaken for an official product.

The site for the series can be found [[http://musoukakyo.maikaze.com/ here]] (in Japanese.).

!!This anime provides examples of:

* AccidentalMisnaming: Tewi calls Aya "Shinbun" (Newspaper), even after being corrected.
* AnimationBump: The second episode looks much better and is animated even smoother than the first episode.
* ArtEvolution: From what can be seen from the trailer, there is a noticeable bump in the animation quality from episode one to episode two. Could actually justify [[DevelopmentHell the overly long wait for its release]].
* BathtubScene: Patchy gets one in the third episode.
* BerserkButton: Patchy does not take kindly to [[ThrowTheBookAtThem getting hit in the face with one of her own books]]. At all.
* {{Blackmail}}: Aya does this to Marisa to get her into helping her and Reimu out, complete with [[BishieSparkle pink sparkles]] in the background.
* BreastExpansion: Reisen now has visible boobs. And as of Episode 3, she's not the only one, as we can also see Patchouli's own breasts being visible through her clothes, and especially during her BathtubScene in said episode.
* TheCameo: Hong Meiling. Also, silhouettes of Cirno and Rumia appear in the {{Eye Catch}}es.
** The 2nd episode opening also features Yukari Yakumo and Utsuho Reiuji.
* CaptainObvious: Remilia and Reimu. It's really an AsYouKnow conversation.
-->'''Reimu:''' However, the number of residents who can make that happen overnight...
-->'''Reimu:''' [[LoadsAndLoadsOfCharacters There]] [[FantasyKitchenSink are]] [[CrowningMomentOfFunny way too many]].
* ConspicuouslyLightPatch
* CryCute: Youmu in episode 2.5 when she despairs over her failure to get a watermelon back to her safely.
* CuteLittleFangs: Remilia being she's a vampire. Also Suika.
* DisproportionateRetribution: When Aya accidentally hits Patchouli with a book, she takes it out on Reimu, who was trying to interrogate her about her missing donation box, by busting out her Royal Flare spell card. Reimu doesn't really hold back when retaliating either.
** Then there's Youmu's reaction to have her watermelon stolen. Reisen barely avoids getting skewered through the head!
** Really, this is Gensokyo. Disproportionate retribution is the name of the game here.
* ElementalPowers: Patchouli is an elementalist after all. So far we've only seen her [[DishingoutDirt create an earth wall]] and use her [[PlayingwithFire Sun Sign: Royal Flare]] spellcard, but hopefully she'll stick around for episode two and show us why she's called the [[BossSubtitles One-Week Wizard.]]
* FreudianSlip: Sakuya at one point almost referred to Meiling as [[FanNickname "China"]], before correcting it.
* GagSub: There is a trollsub [[http://www.youtube.com/watch?v=V5qh2MhJyA4 here]], which has the same function as an abridged series.
* GenkiGirl: Aya, almost aggressively so.
* GilliganCut: After the credits of episode two, Reimu remembers sending Suika on an errand before coming to the Scarlet Devil Mansion. Reimu imagines Suika asking where she went. Cut to a drunken Suika at the shrine saying those exact words.
* GlowingEyesOfDoom: Patchy upon getting up after getting a book to the face. Uh oh...
** Also Reisen when she's forced to use "Lunatic Red Eyes" against Youmu. Also crosses with RedEyesTakeWarning, as can be guessed from the name.
* GroundhogDayLoop: By Episode 3, [[spoiler:Alice and Patchouli are beginning to suspect that either this is happening, or the memories of the previous day are repeatedly being erased from the minds of everyone in Gensokyo so they only ''think'' this is happening.]]
* HeavySleeper: Meiling, who doesn't even wake up and notice Aya is ''right in front of her'' taking pictures.
* IBelieveICanFly: It is Touhou after all. However, special mention must go to Aya. As a Tengu, she can be mistaken as a jet when seen from a distance.
* {{Jerkass}}: Reimu. She goes to the SDM in order to unfairly accuse Patchouli of stealing her donation box, and completely expects her to continue their conversation when Patchy ''clearly'' just got struck by a heavy book to the face.
* LeaningOnTheFourthWall
--> '''Yuyuko:''' Just because I'm [[{{Flanderization}} portrayed as a black hole]] doesn't mean I could eat it all.
** NoFourthWall
--> '''Reimu:''' We already figured that out at the end of episode one.
* MarshmallowHell: In episode 2.5, Yuyuko takes Youmu into her arms and applies this trope to cheer her up, after Youmu despaired about not being able to get a watermelon back safely.
* MysteriousWatcher: A shadow peers out of the trees at the Hakurei Shrine in episode 1 and someone is listening at Patchouli's door in episode 2. Both instances involve Marisa.
* MythologyGag: Kaguya does this ''half-asleep''. She's holding a UsefulNotes/SegaSaturn controller (after we just went through a conversation with [[VisualPun Yuyuko]]), and she's even been playing [[LeaningOnTheFourthWall STGs and danmaku games]]. Aya, however, [[UpToEleven takes this further]]: she has the camera charge meter from her own games as she's taking a picture!
* OffModel: There are a few instances of weird reflections and extra fingers.
* OhCrap: Reimu gets this kind of face when she realizes that her donation box is missing.
* PoorCommunicationKills: In episode 2, several important bits of information are not passed along:
** Marisa finds Patchouli's supposedly lost book, but neither of them tell Remilia, Sakuya, and Reimu, who are discussing the incident.
** Aya forgets to tell Tewi that the banquet was canceled.
** Youmu never mentions to Reisen that the watermelon Tewi gave her was actually taken from Youmu.
* PuniPlush: The character design has elements of this, which looks incongruous next to the lavishly detailed backgrounds.
* RealSongThemeTune: The opening theme is a shortened version of one of Maikaze's earlier tracks, which was part of an album they had released at the 5th Reitaisai event, 7 months before Comiket 75, when the first episode was released.
* RunningGag: Suika getting her horns caught in the door whenever she tries to go outside.
* SceneryPorn: Even though the character animation may have some problems, the background art is ''outstanding.''
* ShoutOut: One of the books in the first shot of the Voile Library is titled {{Wiki/Wikipedia}}.
** [[TakeThat It's one of the skinniest]] [[CrowningMomentOfFunny books on the shelf.]]
** In episode three, when Sakuya uses her time-stopping abilities on [[spoiler:Aya]], she yells [[Manga/JoJosBizarreAdventure THE WORLD!]]
* SurprisinglyGoodEnglish: The English subtitles. MAIKAZE took the extra precaution of asking a native English speaker ([=KirbyM=]) to proofread the translation, and it shows.
* TechnicalPacifist: It's shown here that Reisen only uses her Lunatic Red Eyes as a last resort, in this case, when Youmu is more or less trying to turn her into a rabbit stew.
* ThemeTuneCameo: Suika can be heard humming the ThemeSong when helping Reimu in the storehouse.
* TheThingThatGoesDoink: Subverted in the Hakugyokurou scene of episode 2. Heard but never seen.
* ThrowTheBookAtThem: Patchouli gets one in the face when Marisa and Aya start arguing (and she even goes [[VerbalTic 'mukyuu!']] as she falls over.) It doesn't go over well with her, to say the least.