''Blue Sheep Reverie'', also know as ''Aoi Hitsuji no Yume'', is manga created by [[Manga/{{Yellow}} Makoto Tateno]]. There are currently 5 volumes with 4 being published in English by [[http://www.junemanga.com/books/?keyword=blue+sheep Juné]].

In a city without a proper name protagonist Kai is in search for the killer of his lover, Maria. He suspects that Lahti, one of the "Four Kings" of the city, is the killer of Maria and gets close to him to carry out his revenge.

!!This manga provides examples of:

* BadassGrandma:
* BadassInDistress
* GeniusBruiser: Probably [[spoiler: Shiki]] since he seems to the most technologically inclined of the "Four Kings".
* [[spoiler: CainAndAbel]]
* [[spoiler:FakingTheDead: Maria faked her own death.]]
* HomicideMachines
* [[spoiler: SiblingTriangle]]
** [[spoiler: {{Twincest}}]]
* ProfessionalKiller: What Lahti and [[spoiler: Maria]] started as.
* RapeAsBackstory
* SlippingAMickey
* UnluckyChildhoodFriend