Have you heard of “KATANAKIZU”?

If you are lightly cut by a sword, you won’t bleed immediately.

You’ll feel a slight pain at the moment of the cut, but it disappears right away. The area around the cut turns pale as the blood drains away. Depending on the depth of the cut, you might even see bone, but you still won’t feel any pain.

Eventually, the area along the cut begins to turn red, and blood starts to well up like beads.

The bleeding is very heavy; a band-aid won’t be enough to stop it, and pressure must be applied to control the bleeding. If the wound is large, you should go to the hospital. Generally, the person who was injured remains calm, while those around them who see the bleeding often panic.

As a personal anecdote, when I cut between my fingers, I felt no sharp pain—I just noticed the bleeding. The cut was so clean that the doctor hesitated about whether to stitch it. We decided to bandage the wound and monitor it overnight. When we checked the next day, the edges had already adhered together, so no stitches were needed.