What connection does Mary have to the Mysterious Old Man with the breathing apparatus?
Could the old man be Yasuharu Haneda, Renya Karasuma, or someone else entirely?
Mary remains one of the most enigmatic members of the Akai family. Her brief encounter with the Mysterious Old Man is especially unsettling because it seems to connect her hidden life with the Haneda family and the larger mystery surrounding RUM.
In Volume 103’s hotel bombing case, the old man’s reaction to seeing Mary suggests recognition, but it does not reveal exactly what he knows.
This article examines Mary’s de-aging, the events of Volume 103, and the later photo-related developments in Volume 108. It includes manga material beyond the currently cited anime adaptations, so anime-only readers should proceed with caution.
Mary and the Mysterious Old Man: The Short Answer
The safest conclusion is that the Mysterious Old Man may have known Mary as an adult. In Volume 103, he reacts strongly when he sees her de-aged form.
“It is almost as if I am dreaming…” (unofficial translation)
Mysterious Old Man
That response changes the mood of the scene. He may not fully understand who the girl is, yet his words and behavior make it look as though he recognizes something familiar in her.
Mary is Masumi Sera’s mother, and APTX 4869 reduced her body to that of a child. The old man’s surprise therefore may reflect the impossible contrast between the adult Mary he remembers and the girl standing before him. It does not prove that he already knew about the drug or her condition.
His behavior is also notable because he does not immediately attack or identify himself. He appears more interested in observing and confirming what he has seen, although his exact goal remains unclear.
The identity of the old man with the breathing apparatus has not been revealed. Yasuharu Haneda is currently the leading theory, while ideas involving Renya Karasuma and Tsutomu Akai remain less certain alternatives. For now, the encounter is best treated as a major clue linking Mary, the Akai family, the Haneda family, and the Black Organization storyline rather than as a confirmed identity reveal.
When Did the Mysterious Old Man Appear?
The Mysterious Old Man first appears in Volume 102, File 1090, “The Truth Behind the Door,” and becomes closely connected to Mary’s story in Volume 103.
His appearances form a continuing thread rather than a single eerie cameo. Volume 102 introduces him, Volume 103 brings him near Mary, and the photo developments in Volume 108 later change how the hotel incident can be read.
- Volume 102, File 1090, “The Truth Behind the Door”: the Mysterious Old Man first appears.
- Volume 103, Files 1094-1096: the hotel bombing case involving Mary and Masumi Sera begins with File 1094, “A Coincidental Meeting.”
- Volume 103, File 1096, “The Secret of the Square”: the old man observes Mary.
- International Episodes 1193-1194 (Japanese episodes 1135-1136), “Momiji Ooka’s Sweet Trap (Part 1)” and “Momiji Ooka’s Sweet Trap (Part 2)”: the anime adapts the old man’s introductory manga storyline.
- International Episodes 1202-1203 (Japanese episodes 1144-1145), “The Hotel Serial Bombing Case (Part 1)” and “The Hotel Serial Bombing Case (Part 2)”: the anime adapts his contact with Mary’s storyline.
The most important chapter for this discussion is File 1096. The explosions dominate the immediate case, but the more lasting danger is that someone outside Mary’s small circle has now seen her.
The case shifts from a self-contained hotel mystery into the main plot because the old man’s surveillance puts Mary’s secret at risk. Even after the incident is resolved, the question of what he recognized remains.
At this point, his purpose is still unknown. His conduct seems more focused on seeing Mary than on removing her, but that interpretation must remain tentative.
Why Was He Shocked to See Mary?
The most natural reading is that the old man saw traces of the adult Mary in the de-aged girl, although the story has not confirmed this explanation.
Mary was originally an adult woman. After being affected by APTX 4869, she began moving from hotel to hotel with Masumi. If the old man knew her before that change, his dreamlike reaction would make emotional sense.
What matters is that recognition does not equal complete knowledge. The scene does not establish that he knew in advance that Mary had been de-aged, understood the drug, knew where she had been hiding, or knew her current plan.
Three broad explanations remain compatible with the scene:
- He knew adult Mary and was shocked by her younger appearance.
- He was surprised that Mary was alive.
- He came to observe her as either a supporter or a watcher.
The first explanation fits the visual and emotional contrast most directly, but it remains an interpretation. His refusal to attack, introduce himself, or explain his intentions keeps the relationship deliberately ambiguous.
For Mary, being seen is dangerous even without an attack. Her altered body and location are closely guarded secrets, so the encounter marks the moment when an unknown outsider reaches the edge of that secrecy.
Who Is Mary’s Supporter, and How Is the Haneda Family Involved?
Mary and Masumi appear likely to have outside support, and Yasuharu Haneda is a plausible candidate for that role.
The pair do not remain in one home; they move between hotels while concealing Mary’s condition. It would be difficult for Masumi, who is still a minor, and Mary in a child’s body to handle every financial and informational need without assistance.
Mary also appears concerned that trouble could reach the person helping them. That concern suggests someone more important than a casual contact, although the story does not disclose the supporter’s identity.
Yasuharu is Koji Haneda’s father, while Shukichi Haneda was adopted into the Haneda family. Tsutomu Akai also disappeared while investigating Koji’s case. These facts place the Haneda and Akai families in a complicated network of family ties and unresolved consequences.
That network makes Yasuharu a narratively credible supporter. He could have both a reason to assist Mary and a reason to avoid public involvement, especially if the unresolved Koji Haneda case still exposes everyone connected to it.
It remains unclear whether Mary’s supporter is Yasuharu Haneda, and it also remains unclear whether the supporter and the Mysterious Old Man are the same person. Those are separate claims, and combining them would make the theory sound stronger than the currently confirmed story information allows.
Candidates for the Mysterious Old Man’s Identity
The Mysterious Old Man’s identity remains unknown, so the main theories must be evaluated separately rather than treated as interchangeable.
He is depicted as an elderly person using breathing equipment, acts through a man in sunglasses, reacts meaningfully to Mary, and appears distrustful of the police. Those traits make him seem important, but none identifies him by itself.
- He uses a breathing apparatus.
- A man in sunglasses acts on his behalf.
- He reacts strongly when he sees Mary.
- His behavior appears to convey distrust of the police.
- His name and allegiance have not been disclosed.
His connection to Mary and his apparent attitude toward law enforcement could arise from a personal grievance, an older case, or an organizational agenda. The story does not yet decide among those possibilities.
Why Yasuharu Haneda Is a Leading Candidate
The Yasuharu theory fits because it connects the Haneda family’s history, the Akai family’s losses, and the possibility that Mary has a hidden supporter.
Yasuharu is Koji’s father. Koji’s case is deeply connected to RUM and the Black Organization, while Tsutomu’s disappearance during his investigation cast a long shadow over the Akai family.
Shukichi strengthens the family connection because he was adopted into the Haneda family despite being born into the Akai family. The two families are therefore linked not only through a case but through kinship.
If Yasuharu were supporting Mary, her concern about endangering her benefactor would fit the emotional and practical circumstances. His possible distrust of the police could also be understandable if he remains dissatisfied with the unresolved investigation into his son’s death, though this is still inference rather than confirmation.
The theory’s weakness is straightforward: nothing currently confirmed conclusively identifies the Mysterious Old Man as Yasuharu. Being a plausible supporter does not automatically make him the observer with the breathing apparatus.
The theory is compelling because its emotional links are coherent, not because the identity has been proved. Koji’s death, Tsutomu’s investigation, Shukichi’s adoption, and Mary’s hidden life create a meaningful pattern, but a pattern is not a reveal.
How to Read the Renya Karasuma and Tsutomu Akai Theories
Renya Karasuma and Tsutomu Akai remain possible identities, but neither theory has decisive support in the currently confirmed story information.
The Renya theory grows out of the Black Organization and APTX 4869 context. Since the drug caused Mary’s de-aging, one could imagine a central Organization figure observing its effect. Under that reading, the old man’s reaction might concern the drug rather than a personal relationship with Mary.
However, the old man’s visible involvement may seem unusually direct for the Organization’s boss. That impression is not enough to eliminate the theory, but it prevents the speculation from becoming a conclusion.
The Tsutomu theory is emotionally powerful because Tsutomu is Mary’s husband and disappeared while pursuing the Koji Haneda case. If he survived and now looks different, seeing de-aged Mary could explain his shock.
Yet his distant behavior would be strange for a reunion between spouses. He watches without identifying himself, and the manga has not revealed enough to explain why. Survival, disguise, current location, motive, and identity are all distinct questions; none should be assumed merely because the theory can connect them.
For now, Yasuharu Haneda is the leading candidate for the man with the breathing apparatus, but the theory remains unconfirmed because the story has not yet revealed the answer. The old man’s eventual allegiance matters as much as his name because it could place Mary primarily within the Haneda family, Black Organization, or Akai family storyline.
What Changed with the Photo Mystery in Volume 108?
Volume 108 gives the photographs from the hotel incident a later role in the danger surrounding Mary and RUM. That development changes how the earlier case feels in retrospect.
Volume 108, Files 1151-1153—”Blackmail Photo,” “Dangerous Photos,” and “The Truth In the Photo”—form the photo sequence that later threatens Mary’s concealed existence. These are manga File numbers, separate from Japanese anime episode numbers that happen to use the same numerals. A photograph that may contain Mary and Masumi threatens to carry evidence of Mary’s concealed existence beyond the hotel.
The disturbing idea is simple: a detail that looked incidental during the bombing case can become dangerous later. The photograph turns a moment of observation into information that can circulate.
The sequence also includes attention to Mary’s coughing. The story does not establish the complete medical meaning of that symptom, but it suggests that her condition may involve more than merely looking younger.
RUM’s side then moves closer to information about Mary. RUM is the Black Organization’s second-in-command and is operating as Kanenori Wakita near the Mouri Detective Agency. Any path that brings him closer to Mary’s secret is therefore dangerous.
The old man’s scene in Volume 103 and the later photograph should still be kept conceptually separate. The first establishes that he saw Mary; the second shows how visual evidence from that period can acquire a new audience and new consequences.
Mary’s danger does not end when one observer leaves the scene, because the photograph can preserve and spread what was seen. That is what makes the quiet detail more threatening than the immediate spectacle of the explosions.
This Volume 108 material is beyond the anime adaptations cited earlier. Anime-only readers should therefore treat this section as a manga spoiler.
Are the Man with the Breathing Apparatus and the Man with the Cane the Same Person?
Based on their depicted differences, it is clearer to treat the man with the breathing apparatus and the man with the cane as separate figures for now.
Both are ominous elderly characters, but they appear near different plot lines. The first is associated with Mary, Masumi, and the hotel bombing case, which makes him look closer to the Akai family, the Haneda family, and APTX 4869 mysteries.
The man with the cane appears closer to Conan Edogawa, Tooru Amuro, and the public-security side of the story. He remains even more mysterious at present, with fewer firm clues to his identity or purpose. His reactions to news about Conan and his apparent connection to instructions involving Amuro make him easier to track as a different major figure.
This separation is a reading aid, not a confirmed identity ruling. Disguise, stand-ins, or coordinated action could still overturn the apparent distinction, so the same-person theory cannot yet be eliminated.
Keeping them separate prevents unrelated theories from collapsing into one another. The man with the breathing apparatus is the person who observed Mary; the man with the cane currently operates along another plot line. That distinction makes later revelations easier to assess without assuming them in advance.
Could Mary and the Mysterious Old Man Meet Again?
Mary’s relationship with the Mysterious Old Man remains unresolved, but his reaction in Volume 103 makes prior familiarity with adult Mary a strong possibility rather than a confirmed fact.
His identity is likewise unknown. Yasuharu Haneda is the leading theory for the man with the breathing apparatus, but the story has not yet confirmed it. The separate man with the cane remains an even less explained figure.
The Volume 108 photograph makes the earlier encounter more consequential by creating another route through which Mary’s secret may reach RUM. What began as one old man’s unsettling observation can become a wider information threat.
Mary, the Mysterious Old Man, Yasuharu, and RUM may look like separate topics, yet they sit along a broad connection between the Akai family, the Haneda family, and the Black Organization. The hotel case matters because it brings those lines unusually close together.
If the old man’s identity is eventually revealed, his reaction in File 1096 and the later photograph may take on a different meaning. Until then, the most reliable approach is to preserve the distinctions between observation, recognition, support, motive, and identity instead of turning one suggestive scene into a definite answer.
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