Only,
she did not even have time to warn him.
The very next second, the longsword in Su Wen's hand erupted in a colorless halo the instant it left its sheath.
The path traced by the colorless blade left a Pale Purple afterimage hanging in the air.
As the foremost Black Tide Corruptors charged at them in swarms, the sword light in Su Wen's hand shattered their Black Tide Cores at once, leaving only the scattered Black Mist to vanish in an instant into silver dust.
These people had all been unfortunate souls trapped in the underground railway.
Unlike those who had encountered Su Wen and been lucky enough to survive, they had been directly eroded by the Black Tide and turned into contaminated entities.
But because the temporary survival shelter where these people had gathered had been discovered,
after observing a moment of silence for them, Natsume Chie found a map that had not yet been completely blurred by Black Tide Erosion.
This place had originally been the central junction between the Shinjuku Line and the Ginza Line.
The girl suddenly recalled the night of her fifteenth birthday, when her grandfather pushed his reading glasses up onto his forehead and pointed to a corner of a secret blueprint.
"The locations I marked may be the wounds most easily torn open after the Origin Era arrives.
What a pity.
I'm already too old, and I no longer have the ability to mend those 'wounds.'"
The old man's words had been filled with regret.
But the girl had not understood at the time. She did not know why an underground railway system that had operated for so long would still have vulnerabilities.
But now, recalling how the old man had specifically marked one of the junctions between the Shinjuku Line and