A passenger on the empty last train: Bayside Monorail investigates figure on cabin camera

The figure has been recorded at least six times since mid-month — always near the same seat on the left side of the car, an outline like a person sitting and facing forward. The recording begins after the train leaves Fukagawa Station and enters the slow-speed section, and never continues past arrival at a station. Crew inspections at the depot found no one aboard on any of the nights.

According to the operator, the figure appeared at the same seat position even on a night when the usual trainset had been swapped out for another. Whatever it is, it attaches to the section of track, not to the car — a fact the company admits it cannot explain, as the reports accumulate. The maintenance department has inspected the cameras twice and found nothing wrong.

The operator states, administratively, that it is "investigating every possibility, including condensation, reflections, and compression artifacts." Empty runs normally carry a single crew member; since the 20th, the last run has carried two. "An operational safety decision. No further meaning," the company says.

The TDA noted that "the section is under Yuragi restriction, but there is at present no observational basis linking the cabin footage to the phenomenon." It confirmed, however, that it has accepted the footage for analysis, saying only that results "will be released through the operator."

A local historian notes that stories of this kind have attached to the Fukagawa–Kameido section since the line opened. A conductor's item in the company newsletter, third year of operation, reads: "On the last inspection round, an umbrella keeps appearing propped at the left window seat. No owner ever comes." Around twenty years ago, a camera-fault report recorded an "exposure anomaly at a specific seating area." Neither entry records a cause.

"Before the landfill, this section was a ferry route," the historian says. "From the boat era there survives a boatman's saying — that some nights the boat rides one heavier than the count. Whether any of it is fact is not the point. What can be said, as a matter of record, is that this place has always drawn the story of the extra one."

Speculation has spread online, where the figure is now simply called "the passenger." People have begun gathering on footbridges and the riverside at the hour of the last run — about forty were counted on the night of the 28th, some carrying flowers. The operator asks the public to stay away from the tracks.

The kiosk at Fukagawa Station has taken to staying open until the last run. "They don't look like thrill-seekers," the woman who runs it said. "They look like people seeing someone off."

A cleaner at Fukagawa Station, 64, offered this: "Some nights, after the last train, you hear footsteps getting off on the empty platform. Forty years I've done this job. Not once have I thought it was anything bad."