Story and characters
The story sits in Liberator's Lacuna. Kanata is new to card games. Futre invites her in. Valner leads the Di:WO guild.
The world page puts Kanata in Lacuna, the metaverse of DIGIMON LIBERATOR. Players duel with a deck-case gadget called a D-STORAGE, through a home full-dive headset called a T.A.L.E. Futre invites her in. She has liked Digimon for a long time and has not had many chances to play the cards.

Who is on the character page
The character page prints four entries.
| Name | What the page says |
|---|---|
| Kanata Hondo | Cheerful casual player. She has tried many genres and is new to card games. |
| Futre | An online friend of the protagonist. Close, and hiding some kind of secret. |
| Valner Dragnogh | Master of the Di:WO guild, which argues for Digimon freedom. He wants former member Futre back. |
| GEMMON | A snow-white Digimon with a gem on the forehead. |
The world page adds the path in: an introductory pamphlet, talks with Futre, then the dive. In Lacuna she meets friends and rivals. The line under that copy says the story will guide both Digimon and the world.
Liberator, not a new planet
Liberator is the webcomic and light novel the game site links from the world page. Alysion's Story Mode is the app's own thread inside that setting: Kanata learning the card game with Futre, with an in-game guide for the battles. The system page is the rules version of that same lesson.
If you want the rules before the cast, go to how a battle is won. If you want the signup, go to pre-registration.