The Mystery Age Of Daisuke Mouthwashing: Unpacking The Fan Theories And Lore Of The Horror Game's Youngest Crewman

The question of "How old is Daisuke Mouthwashing?" is one of the most persistent and intriguing pieces of fan lore surrounding the 2024 psychological horror game, Mouthwashing. As of today, December 11, 2025, the game's developers, Wrong Organ, have not provided an official, concrete age for the character. This deliberate ambiguity has fueled extensive community speculation, with the consensus placing the optimistic and enthusiastic intern, Daisuke, firmly in the late-teen to early-twenties bracket, making him the undisputed youngest member of the ill-fated Tulpar space freighter crew.

The character's youth is a foundational element of his personality and his interactions with the older, more cynical crew members. His exact age is a fascinating puzzle piece that, when solved, helps to unlock a deeper understanding of the game's themes of isolation, survival, and the loss of innocence in a terrifying, confined environment. The community has largely settled on a specific number, a "headcanon" that is now virtually canon among fans, based on subtle in-game clues and his designated role.

Daisuke Mouthwashing: A Brief Character Profile

Daisuke is a central supporting character in the critically acclaimed horror adventure game Mouthwashing, which was released on September 26, 2024, for PC by developer Wrong Organ and publisher Critical Reflex. The game plunges players into a tense first-person narrative following the crew of the cargo vessel, the Tulpar space freighter, which has crashed and become stranded in the void of space. Daisuke’s role provides a stark contrast to the grim reality of their situation.

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• Full Name (Speculated): Daisuke Juarez
• Role on Tulpar: Early Intern
• Supervisor: Swansea (Ship Mechanic)
• Crewmates: Captain Curly, Co-pilot Jimmy, Medic Anya, and Mechanic Swansea
• Defining Trait: Unwavering optimism and enthusiasm, even after the crash.
• Physical Appearance: A tall young man with a tanned complexion, semi-dyed brown hair, and almond-shaped brown eyes. He is noted to have a mole on each cheek.
• Inspiration: His visual design is reportedly based on the character Ryosuke Kawashima from the 2001 Japanese horror film Kairo, as noted in the developer diaries.

His bright demeanor and youthful energy stand out against the backdrop of the game's psychological horror, making his fate and character arc particularly poignant for players. The focus on his age is directly linked to his perceived vulnerability and innocence in a desperate survival scenario.

The Fan Consensus: Why Daisuke is 19 Years Old

The overwhelming fan consensus regarding Daisuke’s age is 19 years old. This number, while not officially confirmed by Wrong Organ, is derived from logical inferences based on his in-game status and dialogue, which establishes his position as the youngest and most inexperienced crew member.

Clues That Point to His Young Age:

1. The "Early Intern" Status: Daisuke is explicitly referred to as an "early intern" or a "last-minute intern" on the Tulpar freighter. In most professional fields, especially highly technical and dangerous ones like deep-space freighter work, a basic internship is often a first step after high school or a vocational program. This places him at the very beginning of his professional life, typically around 18 or 19 years old.

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2. Still Living with Parents: A key piece of dialogue or lore mentioned in fan discussions suggests that Daisuke "still lives with his parents." While not uncommon for people in their early twenties, this strongly reinforces the idea of him being a fresh, young adult who has not yet established full financial independence, making a 19-year-old age estimate highly plausible.

3. Crew Dynamics and Inexperience: Daisuke is consistently portrayed as the most naive and least jaded member of the crew. In contrast, his crewmates are significantly older. Captain Curly and Co-pilot Jimmy are speculated to be in their late 30s to early 40s. Medic Anya is estimated to be in her late 20s, having reportedly failed to get into medical school multiple times. Mechanic Swansea, his direct supervisor, is the oldest, estimated to be in his mid-50s.

The age gap emphasizes the generational divide and heightens the sense of responsibility the older crew members feel, or fail to feel, toward the young intern during their terrifying ordeal.

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The Significance of Daisuke's Age in the Mouthwashing Narrative

In the narrative of Mouthwashing, the youth of Daisuke is not just a trivial detail; it is a critical component of the game’s themes. The psychological horror of being stranded in space is amplified by the presence of a character who represents hope and innocence.

Thematic Relevance and Topical Authority:

A Symbol of Lost Hope: Daisuke's optimism acts as a fragile beacon against the crushing despair of the Tulpar crew. His eventual fate or descent into paranoia, depending on the player's choices and the game's progression, symbolizes the destruction of hope and the brutal reality of the survival horror genre. A character in his late teens or very early twenties has the most to lose—a whole life unlived.

The Intern's Vulnerability: His status as an intern means he has the least authority, the least experience, and is often relegated to menial or dangerous tasks. This vulnerability is a classic trope in cosmic horror and space-based survival narratives, where the inexperienced crew member is often the first to break or suffer the worst consequences. This is a crucial element of the game’s character dynamics.

LSI Keywords and Entities: The deep dive into Daisuke’s age naturally brings in a host of related entities that build topical authority around the game. Discussions of his age lead directly to the game's setting (Tulpar space freighter), the developers (Wrong Organ), the publisher (Critical Reflex), the genre (psychological horror, adventure game), and the entire cast of characters (Curly, Jimmy, Anya, Swansea). The collective speculation and fan theories (fan headcanon) are themselves a core part of the game’s modern identity.

Beyond the Age: Daisuke’s Impact on the Mouthwashing Community

Even without an official birthdate, Daisuke has become one of the most popular and discussed characters in the Mouthwashing community. His perceived age of 19 is now the accepted starting point for all fanfiction, fan art, and in-depth character analyses that explore his life before the crash and his coping mechanisms afterward.

The developers' choice to leave the ages of the crew members ambiguous, while providing enough context to infer a range, was a brilliant move for a narrative-driven game. It allows players to project their own understanding of youth and experience onto the characters, deepening the emotional connection to the stranded crew. Whether he is 18, 19, 20, or 23, the answer to "how old is Daisuke Mouthwashing" is less about a number and more about his role as the symbol of fragile innocence aboard a dying ship.

In conclusion, while the official record remains silent, the overwhelming evidence and community consensus place Daisuke, the optimistic intern of the Tulpar space freighter, at 19 years old. This age is crucial to understanding the character's motivation and the tragic themes of the 2024 horror hit, Mouthwashing.