Theory of Paradise is a Manga/Manhwa/Manhua in (English/Raw) language, Fantasy series, english chapters have been translated and you can read them here. You are reading Theory of Paradise chapters on VipToon.Net, fastest updating comic site. The Summary is
The spoils of the Urban Alliance, 'Yoo Eun-woo' enters the Urban Alliance Central School as if kicked out of the military. There, he meets 'Seo Jae-hee', the president of the student council, and 'Jeong Yun-hwan', a former member of the Urban Alliance, and there is no easy day... What about the ominous prophecy that came before these three?