Marie Adler

Marie Adler is a supporting character in the Infinite Dendrogram anime adaptation. She is a skilled player (Master) in the Kingdom of Altar who works as a journalist for the Dendrogram Information Network (DIN), often providing the protagonist Ray Starling with key information about events, players, and the game world.

In the game, she presents as a tall, attractive young woman dressed in a black men's business suit and sunglasses, giving her a cool, mysterious, and somewhat suspicious vibe. She has martial arts experience and wields a gun-type Embryo called Arc-en-Ciel (L'Arc-en-Ciel), which allows her to perform impressive feats in combat—despite it being relatively under-leveled, her skill lets her take down much stronger opponents with ease.

Her personality comes across as superficially polite but laced with sarcasm, often aloof or teasing in demeanor. She's revealed to be deeply invested in her role, as in real life she is a manga artist (real name Ichimiya Nagisa) who created a character named Marie Adler for her own series. Struggling with writer's block, she entered the game to essentially live as that character and overcome her creative issues.

Overall, in the anime, she serves as a reliable (if quirky) ally and source of exposition while showcasing capable combat prowess and a unique personal backstory tied to creativity and immersion in the VR world.