LACUNA

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LACUNA (ラクーナ, Rakūna) is the virtual space where Digimon Liberator takes place. It's a cyber world formed from a complex fusion of mapping data from the real world. Users can access it through a Full Dive using a Translation Another Life Engine, or T.A.L.E., metaverse pods available at amusement facilities nationwide, where they set their D-Storages and put on goggles to start the machine..

According to the lore, LACUNA was once a highly-advanced civilization, a city that reached the height of prosperity. However, 300 years ago, the original inhabitants, Digimon, were sealed into cards and vanished, and robots and androids (NPCs) have since proliferated as the new ruling species of LACUNA.

LACUNA was discovered by Cool Boy, who then used its source code to create the foundation of the Liberator system. Few people seem to know this, and most players believe that LACUNA is merely a game world created and managed by humans.

LACUNA is divided into seven distinct areas, each forming an island composed of various cities.

Areas

Emerald Coast

The Invasive Forest City Emerald Coast (侵森都市エメラルドコースト Shinshin Toshi Emerarudo Kōsuto; Dub: Emerald Coast, the Invasive Forest City) is a vast city encroached upon by nature. It primarily features skyscrapers, but there are also places resembling Southeast Asian ruins and Japanese-style buildings, all of which are taken over by plants.

It functions as a tutorial area for beginning players embarking on their first adventure, with most of the battle NPCs encountered being low-level. It's beloved by many players for its quiet atmosphere relatively peaceful setting, making it useful as a base of operations.

There are two types of quest in this area:

1. Defeating a set number of low-level NPCs within a designated time limit, designed so that new players can get accustomed to the battle system. The NPCs notably use Green cards and are programmed to let the players win unless they make significant mistakes.
2. Answering NPC quizzes about the Digimon Card Game. These quests are unique to the Emerald Coast and feature various levels of difficulty, ranging from deducing the names of cards and Digimon to more complex problems. They're designed to be enjoyed by both beginners and seasoned players, with rewards varying by difficulty level, though they primarily consist of decorative items that enhance the players' appearances and D-Storage units. However, successfully solving high-difficulty questions may also yield ability items that can be used to create new Tamer Cards. There is talk of an NPC which specializes in quizzes with exceptionally high rewards, but it remains a rumour.

NPCs that act as conduits to the episodes of the Main Scenario's prologue are located in the Emerald Coast. One of these is Makina, a robot on the brink of shutdown who entrusts several cards to the players starting the Main Scenario, before exhausting its power.

Ruby Mountain

The Roaring Flame Zone Ruby Mountain (轟炎地帯ルビーマウンテン Gouen Chitai Rubī Maunten) is a high-level area within LACUNA, located far from the central city, on the distant outskirts of the realm. No NPCs normally exist in this area. Due to the smoke and ash billowing from clusters of active volcanoes, the sky cannot be seen, the only light coming from rivers of flowing magma, casting everything in a glowing red. The dull pop of bubbles forming from the lava and the savory sizzle of the molten stone serve as makeshift background music.

Jewel

The Central District Jewel (中央府ジュエル Chūō-fu Jueru; Dub: The Central District of Jewel)

E.G.G

E.G.G (エッグ Eggu), short for Extent of Governing Ground, is an enormous computer.

Garden

Garden (ガーデン Gāden).

Avalon

Debug Team Dedicated Area Avalon (デバッグチーム専用エリアアヴァロン Debaggu Chīmu Senyō Eria Avaron; Dub: Avalon, the Debugging Team's Private Area)

Lapis Marines

The Ever-Sunny Seascape Lapis Marines (連晴海岸ラピスマーリンズ Rensei Kaigan Rapisu Mārinzu; Dub: Lapis Marine, the Ever-Sunny Seascape)

Amethyst City

The Sharp Sky Corridor Amethyst City (尖鋭天廊アメジストシティ Senei Tenrō Amejisuto Shiti; Dub: Amethyst City, the Sky Spire Corridor)

Obsidian Desert

The Dusty Demonic Realm Obsidian Desert (塵外魔境オブシディアンデザート Jingai Makyō Obushidian Dezāto; Dub: Obsidian Desert, the Dusty Demonic Realm)

Appearances

Manga

Digimon Liberator

In "Welcome to LACUNA", Owen Dreadnought entered LACUNA at some point after his defeat to Zenith in the Digimon Card Game World Championship.

Kazama Shoto entered LACUNA for the first time alongside Kinosaki Arisa following Owen's example, using a T.A.L.E. at an arcade. When he did, he found himself falling, as welcome messages appeared in English, Japanese, Korean and Chinese Simplified. As he fell, Shoto saw an orb with two crossing rings, and screamed in terror as he kept falling. He managed to land on his feet in LACUNA, and later met Arisa and her Partner Digimon, Junkmon.

Several more players and Digimon were shown in LACUNA in "DigitalGate Open". Shoto and Arisa themselves landed in the Emerald Coast, where they were attacked by a Battle Type NPC that should not exist in that area.

Novel

Digimon Liberator

Yuuki and Impmon go to Ruby Mountain in "Yuuki" to take care of a rogue NPC. Despite their loss, Yuuki still obtained an ability item and some new cards here, which she'd use to build her Dark Dragon deck. With it, they fought the NPC once again in "HEAVY METAL PLAY", winning this time.

Saikiyo and Funbeemon go to Emerald Coast in "Saikiyo" at the latter's suggestion, though only because the former wanted to fight an NPC that defeated Yuuki and Impmon earlier, as he saw it as good practice for his new deck. He fought the NPC in front of a vine-entangled stone pyramid reminiscent of ancient Central American civilizations, ultimately winning the fight.

Additional Information

References	Notes