設定與官方短篇小說
赤鳥 劇情與世界觀
琥珀風暴是一種腐化現象，會感染並扭曲 赤鳥 世界中的居民與自然，同時也產生了賦予遊戲名稱的珍貴琥珀晶體。Contrast Games 已發布其自身的開發者短篇故事——「赤鳥 傳說」——遠比商店頁面上的簡短描述更深入地充實了這個設定，而本頁面將它們全部收集在一個閱讀清單中。
貫穿這些短篇的主題線索包括：赤鳥修道院的僧侶對琥珀腐化表現出異常的抵抗力，這在遊戲世界內至少有一位帝國醫師協會的研究員爭論是源於遺傳還是後天訓練；「琥珀化」是開發者自創的詞彙，指代被腐化的人類與生物；而普通平民則在檢查站、疏散行動以及關於修道院自身實驗室的謠言中生活，為Mako的故事提供背景素材。其中幾篇短篇是以遊戲世界內的文件形式撰寫——例如一位醫師的日記、一份民防通知、一本教學手冊——而非第三人稱敘事，這讓它們更像是從該世界內部發現的記錄，而非為玩家撰寫的總結。
世界細節
琥珀風暴與琥珀化的世界
以下十一篇短篇中，有兩篇是以怪物圖鑑風格的開發者貼文而非小說形式撰寫，兩者都描述了琥珀腐化作用於動物而非人類：琥珀鼴鼠，一種原本無害的盲眼生物，被轉變為伏擊型攻擊者，但仍然看不見，一旦被激怒反應遲緩；以及琥珀鮟鱇魚，一種水下伏擊型掠食者，一旦發動衝刺攻擊就會變得脆弱。與以人類為中心的故事對照閱讀，規律是琥珀腐化改變行為多於改變智力——被腐化的生物與人類都保留了腐化前的可辨識特徵，只是被推向敵意。該世界觀也暗示了跨世界結構：一篇短篇跟隨一位商人在跨世界檢查站被警告遠離「琥珀化的世界」，這暗示赤鳥的世界並非單一連續的地圖，而是一組具有各自污染狀態、疏散命令與海關規則的相連區域。命名元素如「和諧之鐘」與「內部混沌」出現在一份遊戲世界內的教學文件（編號「AKA-19/1」）中，描述了一種在虛擬空間中摧毀「混沌投影」的機制；這些是官方開發者文本，儘管尚未像能量/呼吸戰鬥重製那樣與遊戲內片段交叉確認。
這些短篇中的人類面向圍繞著Mako本人之外的少數命名角色：同為見習者的Yumi與Bao在她們的修道院入門儀式前與她一同出現；將軍之女Hilda因暴露於琥珀風暴而罹患慢性疾病，修道院的訓練以一種與Mako及名為Hana的角色形成對比的方式保護了她；而見習者Haruko羨慕一位商人的普通家庭生活，促使Mako反思在修道院體系中成長、缺乏正常童年的經歷。其中一篇短篇甚至描寫一名間諜在帝國首都電車上悄悄記筆記，而市民正在議論修道院對琥珀的抵抗力與一個傳聞中的實驗室——這個小細節暗示修道院的琥珀抵抗力不僅是那位帝國醫師協會研究員的科學好奇對象，更是外界政治關注的議題。
赤鳥傳說——官方短篇集
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Akatori Tales — Dreams
Official short-fiction dev-diary vignette depicting Mako and fellow novices (Yumi, Bao) anxious before their monastery initiation ceremony, establishing the Akatori Monastery training-school setting.
Read full tale →Akatori Tales - Diary
Official short-fiction vignette written as a physician’s diary describing a world being evacuated and quarantined after amber contamination, introducing the term "amberized" for infected people.
Read full tale →Akatori Tales - The General’s Daughter
Official short-fiction vignette introducing Hilda, a general’s daughter who is chronically ill from amber-storm exposure and is protected by monastery training, contrasted with Mako and Hana.
Read full tale →Akatori Tales - Imperial Scientific Society
Official in-world document from an Imperial Association of Doctors researcher hypothesizing that Akatori Monastery monks’ amber resistance is either hereditary or trained, framing "Akatori" in-world as a possibly mythic former deity.
Read full tale →Akatori Tales - Chaos
Official in-world instructional document ("AKA-19/1") describing a game mechanic/lore concept called Internal Chaos, the Bell of Harmony, and destroying "projections of chaos" inside a virtuality space.
Read full tale →Akatori Tales - Merchant’s life
Official short-fiction vignette about a young merchant warned away from amberized worlds by an experienced merchant at an interworld checkpoint, illustrating the setting’s inter-world teleport/customs system.
Read full tale →Akatori Tales - Civil Defense Notice
Official in-world "instruction for the population" document detailing amber-contamination signs, evacuation procedure, and prohibited actions, reinforcing the Amber Storms as a body-horror infection with a public-safety bureaucracy around it.
Read full tale →Underground Danger — Amber Mole
Official bestiary-style dev post describing the Amber Mole enemy: a once-harmless blind creature corrupted by amber that ambushes from underground with sharp claws but is still blind and reacts slowly.
Read full tale →Akatori Tales - Escape
Official short-fiction vignette featuring novice Haruko envying a merchant’s family life, with Mako reflecting on monastery children growing up without a normal childhood.
Read full tale →Akatori Tales - Gossips
Official short-fiction vignette set on an Empire Capital tram where citizens gossip about the Akatori Monastery, monks’ resistance to amber, and a rumored monastery laboratory, while a spy secretly takes notes.
Read full tale →Evil in the Deep — Amber Anglerfish
Official bestiary-style dev post describing the Amber Anglerfish enemy: an ambush predator hiding in underwater sand, vulnerable once it commits to a sprint attack and can be lured into obstacles.
Read full tale →