三部分，五章节
- 世纪战争（1）——海城墙战役、
- 城墙守卫军、
- 世纪战争（2）——王国战役、
- 王子养成记、
- 世纪战争（3）——光复之战
共302篇，约25万字
其中《城墙守卫军》、《王子养成记》各独立成长诗，分两篇。每篇字数控制在五万字以内。世纪战争三章节则分别主要讲述：天使马修利斯、海神Ocean阻击邪恶、黑暗势力，和马修、国王正面抗击薨、怛，以及王子、希雅Sea、马修重建守卫军，迎回王国光明，收复海城墙的故事。又每章节分100短篇，每篇约500字，三百篇则计15万字。
又或再讲述马修、海神、薨王，海城墙碰面之前的故事。以及马修、王子、希雅、薨的各自结局。详见小说《云的国》。
墙的释义：水和云的界限。
Three parts, five chapters
- Century War (1) – Sea Wall War,
- Guardsmen of Sea Wall,
- Century War (2) – the Kingdom Battle,
- Journey of the Prince,
- Century War (3) – Regain of the Lost
A total of 302 articles, about 250,000 words
Among them, Guardsmen of Sea Wall and Journey of the Prince are the independent parts, two different chapters. Each length is controlled within 50,000 words. Three chapters’ story of Century War are mainly about: How angel Matthew Liss and poseidon Ocean to block evil and dark forces & Matthew Liss helps the King stand positive confrontation with Hong and Da & The Prince and Sea–the daughter of Ocean, with the help of Matthew Liss to rebuild the Guardsmen, recover the Sea wall and welcome back the Bright Future of KingDom. Three chapters with a total of 150,000 words are also divided into 100 short stories and each length controlled within 500 words.
As for the story and details before Matthew Liss, Ocean, and Hong meets at Sea Wall & the respective endings of Matthew Liss, Prince, Sea and Hong. Please See the novel Cloud Country.
Interpretation of the wall: the boundary between water and clouds.