Kyoukai Senjou no Horizon 4koma anthology by various artists.Not to be confused with the Horako-san 4koma.Note: Spoilers and in-jokes abound.> Spin-Off of Kyoukai Senjou no Horizon (http://mangapark.com/search?q=kyoukai-senjou-no-horizon )Related:> Kyoukai Senjou no Horako-san( http://mangapark.com/search?q=kyoukai-senjou-no-horako-san )> Kyoukai Senjou no Horako-san - Shucchouban( http://mangapark.com/search?q=kyoukai-senjou-no-horako-san-shucchouban )> Kyoukai Senjou no Horizon - Animedia 4koma( http://mangapark.com/search?q=kyoukai-senjou-no-horizon-animedia-4koma )