Debidebi Debiru

Who is Debidebi Debiru?

Debidebi Debiru is a Japanese VTuber and streamer affiliated with the NIJISANJI project. Presented as a demon from another world, Debidebi began activities in 2018 and frames their mission as making their existence known to humans and growing in power.

Debidebi's official profile lists a December 18 birthday, a fan name of けいやくしゃ, and the character mark built around a door and an angry demon face represented by the emoji combination 🚪👿. Their public persona mixes playful cuteness with horror-themed tastes.

Creator & Studio

The character design for Debidebi Debiru is credited to the illustrator 巻羊, who is known professionally under the handle rollsheeeep. Debidebi is produced under NIJISANJI, the talent project run by Anycolor.

Visual Style & Aesthetics

Debidebi appears as a small demon‑imp with wings and a plush, rounded silhouette that many fans describe as koala‑like. The design balances spooky motifs with soft, kawaii features, making the character visually approachable while retaining demonic iconography.

Signature visual markers include the door-and-devil emoji motif and a consistent color and expression language across portraits, thumbnails, and official art. Costuming and new outfit releases have been shown in both 2D and 3D renderings.

Persona & Content

Debidebi's on‑stream persona is friendly and whimsical while leaning into horror interests as a character trait; they often joke about being a fearsome demon but present a lighthearted voice and manner. Their stated hobbies include watching horror films and reading horror manga as part of their character lore.

They frequently appear in multi‑talent collaborations within the NIJISANJI roster and engage viewers with chat-driven streams, variety gaming sessions, and occasional music or singing content. The tone of their content blends playful teasing, affectionate banter with viewers, and enthusiastic game commentary.

Content Type & Format

Debidebi produces live streams as the core format, including free‑chat broadcasts, multiplayer and single‑player game playthroughs, and collaborative co‑streams with other VTubers. Streams are typically hosted on YouTube and promoted via X.

Shorter video formats and premieres are used for music performances, produced clips, and special event reveals. Debidebi's content often uses thumbnails and art to signal theme and mood, pairing character visuals with catchy titles to draw viewers into archived videos and scheduled premieres.

Audience interaction is central: Debidebi's streams rely on live chat, Q&A segments, and guest collaborations to shape the flow of videos. The channel mixes casual, personality‑forward moments with structured gaming sessions and occasional staged events.

Debidebi Debiru Collaborations and Campaigns

RTK14 Collaboration Officer Romance of the Three Kingdoms XIV: In 2021 a collaboration DLC added Debidebi as an officer in the game, positioning the character in a promotional crossover that placed VTuber profiles and assets inside the title. The partnership functioned as cross‑promotion between NIJISANJI and the game publisher and was distributed as downloadable content and promotional listings.

Virtual Liver Style '25: Phantasy Star Online 2 New Genesis collaboration: In April 2025 Debidebi was included in a NIJISANJI crossover for PSO2 New Genesis, providing avatar items, battle voices, and themed cosmetics such as a Debidebi‑themed Mag Form. The campaign delivered in‑game items via scratch tickets and login bonuses and was presented through official game update announcements and promotional imagery.

Technical Details & Platforms

Debidebi's online activity primarily appears on YouTube and X, with additional presence referenced on platform listings used by the NIJISANJI project. The character is represented in both 2D and 3D model forms across art, thumbnails, and live presentations.

All content is produced in Japanese and presented with a variety‑streaming style typical of large talent agencies, combining preproduced assets and live performance elements to keep a consistent character image.