Kofu 1975 child witness sketches of the UFO and humanoid

KOFU · JAPAN · 23 FEBRUARY 1975

Two boys saidsomething landed.

Masato Kono and Katsuhiro Yamahata were playing on roller skates when they saw orange lights over Kofu. One descended toward a vineyard. They followed it — and later described a silver craft, a small figure and a moment of physical contact.

AUTHENTIC WITNESS-DERIVED SKETCHES · UFO + HUMANOID · NO MODERN RECONSTRUCTION

HERO · Drawings attributed to the child witnesses showing the craft, humanoid and carried object. These are witness-derived historical visuals, not later decorative art.

23 FEB 1975evening encounter

2 BOYSprimary close witnesses

VINEYARDreported landing site

PHYSICAL CONTACTshoulder-touch claim

WHY THIS CASE MATTERS

Kofu is one of Japan's classic close encounters because the story did not stop at a light in the sky.

On the evening of 23 February 1975, two elementary-school boys, Masato Kono and Katsuhiro Yamahata, were playing near the Kamicho housing area in Kofu, Yamanashi Prefecture. Contemporary and later accounts place them in the second grade, around seven or eight years old.

They said they saw two luminous orange objects in the sky. One eventually moved away. The other descended toward nearby vineyards. Curiosity overcame fear, and the boys went to investigate.

The resulting account is unusually detailed for a child-witness case: a landed silver object, rotating components, window-like panels, markings on the hull, a short humanoid, a second figure inside, and an alleged touch on one boy's shoulder.

That detail is both the attraction and the problem. The core evidence comes from two children. Their drawings and early interviews matter, but every later embellishment has to be checked against the earliest record.

Kofu is strongest when the boys' first story is allowed to stand on its own — before later retellings make it bigger.

01 / THE ORANGE LIGHTS

The encounter started in the sky.

Accounts collected from the boys describe two glowing objects approaching from the eastern sky while they were outdoors. One appeared larger than the other. At close angular range they reportedly saw circular forms and components beneath the objects.

One object moved away toward the north or northeast. The other descended in the direction of a vineyard. The boys initially hid in a nearby cemetery before later moving toward the reported landing area.

Those first minutes matter because they show that the landed-object story did not begin in isolation. The boys said they first watched aerial objects move and hover before one was encountered on the ground.

~18:30–19:00

Two orange objects

The boys notice two bright objects while playing outdoors.

PRIMARY CHILD TESTIMONY.

MINUTES

Objects come closer

They report visible underside detail and unusual sounds.

NO PHOTOGRAPH OR INDEPENDENT INSTRUMENT RECORD.

SEPARATION

One leaves

The larger object reportedly moves away while the smaller descends toward the vineyard.

SETS UP THE GROUND ENCOUNTER.

02 / THE VINEYARD

A silver object in the vines.

At the vineyard, the boys said they found a silver, roughly disc- or dome-shaped object on the ground. Dimensions vary across retellings, but the scale was described as car-sized rather than enormous.

They described luminous or blue square window-like panels, a dome, three rounded supports or landing elements underneath, and unusual marks or characters on the exterior. Some accounts add a stair or doorway opening downward.

The boys reportedly spent several minutes close to the object. That makes Kofu more difficult to explain as a fleeting astronomical misidentification, but it does not remove the possibility of a constructed object, machinery, prank or distorted child perception.

Kofu UFO landing site investigation with the boys and adults — **LANDING-SITE INVESTIGATION** Historical photograph of the boys and adults marking the reported touchdown area in the vineyard.

Kofu child witness sketch of humanoid — **WITNESS HUMANOID DRAWING** Child-drawn front and rear views of the reported being and carried object.

Combined Kofu UFO and humanoid witness drawings — **CRAFT + OCCUPANT SKETCHES** Historical witness-derived visual material central to the case.

03 / THE BEING

Then the door opened.

The boys described a short humanoid emerging from the object. The figure was said to be around 1.2 to 1.3 metres tall, wearing a silver one-piece garment, with dark brown or wrinkled skin and unusually pointed ears.

They said the face lacked normal human features and included three protruding fang- or tube-like elements around the mouth area. The figure carried or wore something the boys compared to a gun or trumpet-shaped device.

The most dramatic claim is physical contact. One boy said the figure came close and touched or patted him on the shoulder while making a strange vocal sound, sometimes compared with a tape recorder running oddly. The boy reportedly froze in fear and was pulled away by his companion.

A second, smaller figure was later described inside the craft. That detail is part of the witness account but has no independent corroboration.

“The being was documented” means the boys documented a claim — not that an entity was independently verified.

Kofu should preserve the extraordinary testimony without converting it into a physical fact. The children unquestionably became known for this account. Whether the humanoid existed outside their perception is the central unresolved question.

04 / THE PARENTS

The boys ran home. Adults then looked toward the vineyard.

After fleeing, the boys told family members what had happened. Later accounts say parents went with them toward the area and observed a glowing orange-red light near or above the vineyard before it disappeared.

This is potentially important corroboration because it places an unusual light in the same area after the boys' close encounter. But it does not independently confirm the landed craft or humanoid.

The evidential distinction is simple: adults may support “something luminous was still visible near the site”; only the boys support “a small being emerged and touched one of us.”

05 / THE TRACES

Broken posts, disturbed wire, holes in the soil.

Investigators later photographed and described damage in the vineyard, including a broken concrete post, another post reportedly displaced or leaning, stretched overhead vine-support wire, and small holes or impressions in the ground.

These traces became a major part of the case. They are real enough to appear in historical photographs, but their cause was not established. Vineyard infrastructure can be damaged by agricultural work, weather, accumulated load or prior wear.

Later claims of elevated radiation at the site are more difficult. The chain of measurement, instrument calibration, background comparison and timing must be reconstructed carefully before any number is treated as evidence of an anomalous landing.

Recent Japanese re-analysis has also pointed out a geometrical problem: some published craft-size estimates do not fit comfortably between the vineyard support posts without producing more obvious damage. That does not disprove the boys' story, but it shows how later numerical reconstructions can conflict with the physical site.

POSTS

Broken / displaced

Photographed vineyard damage existed, but causation was not established.

WIRE

Stretched

Overhead support wire was said to look as if loaded by weight.

GROUND

Holes / impressions

Later associated with landing supports, but not forensically secured on the night.

RADIATION

Later claim

Potentially interesting, but measurement provenance is weaker than the visual trace record.

06 / THE EXPLANATIONS

Childhood fabrication, prank, machinery — or a genuine close encounter?

FABRICATION

Two boys invented it

Children can construct elaborate shared stories. The persistence of the account and early drawings are interesting but do not make fabrication impossible.

PRANK

Staged object / person

A small craft-like prop and costumed adult could theoretically reproduce parts of the account, though no demonstrated prank mechanism or perpetrator has emerged.

MISPERCEPTION

Ordinary stimuli transformed

Lights, machinery, a person and fear could combine into an extraordinary child memory. The claimed close duration makes a simple one-object misidentification less comfortable.

UNKNOWN

Genuine unidentified encounter

If the boys' early account is substantially accurate, Kofu describes a physical object and humanoid presence at very close range.

07 / WHAT THE RECORD CAN CARRY

Kofu has more than a story — but less than proof.

What the record supports

Two schoolboys reported unusual orange aerial objects in Kofu on 23 February 1975.
They gave a detailed account of a landed silver object in a vineyard.
They produced drawings of the craft and humanoid.
Family members were later said to have observed an orange-red light near the site.
Physical damage and disturbances in the vineyard were photographed and investigated.
The case received early Japanese press and UFO-research attention.

What it does not establish

No photograph captures the landed craft or humanoid.
No independent adult witnessed the close encounter alongside the boys.
The shoulder-touch claim rests entirely on child testimony.
The vineyard damage was not secured as a forensic scene immediately after the event.
Radiation claims require stronger measurement provenance than many retellings provide.
The surviving evidence does not establish extraterrestrial origin.

Either two boys built one of Japan's most elaborate UFO stories and carried it for decades — or they walked into a vineyard and saw something very few people have ever claimed to see at that distance.

08 / SOURCE ROOM

Use the Japanese record first. Treat later global retellings as secondary.

JAPANESE CASE ARCHIVE

UFO Japan Archive — Kofu

Modern Japanese-language dossier separating the core testimony, physical-trace record and later claims.

OPEN JAPANESE DOSSIER →

HISTORICAL RECONSTRUCTION

My Dad Is an Otaku — Kofu Parts 1–3

Detailed English-language reconstruction drawing heavily on Japanese publications, photographs, interviews and site material.

OPEN RECONSTRUCTION →

CONTEMPORARY UFO LITERATURE

APRO Bulletin — 1976

Early English-language report preserving the humanoid description relatively close to the incident date.

OPEN APRO REPORT →

MODERN CRITICAL ANALYSIS

PURSUE//JP — 2026 review

Useful recent Japanese analysis testing vineyard geometry, support-wire damage and later physical-trace claims.

OPEN CRITICAL REVIEW →

THE QUESTION KOFU LEAVES

What did the boys find in the vineyard?

The case has the ingredients of folklore — children, a strange creature, an impossible machine — but it also has early drawings, a specific site, photographed damage and families who took the story seriously enough to investigate immediately. Kofu remains compelling because it sits exactly on the boundary between an extraordinary childhood story and an extraordinary physical encounter.