WK SA Spoiler Alert: This page contains spoilers. Read at your own risk.

Sonic Blade


B Class
Oscillation Type
Single Target
Known Users
Kirihara Takeaki
Related Spells

Sonic Blade (高周波ブレード) is a close-combat Oscillation Type magic and is classified as a B-Rank lethal spell.

This spell can be applied to anything, giving the item the ability to cut easily. The item vibrates at extremely high frequencies, making it similar to a saw. The extremely high frequencies give rise to ultrasonic waves so practitioners of this technique often wear earplugs to block out ultrasound. [1]

It is a magic with limited applications, and apart from having an untouchable blade, it is similar to wielding a real sword.

Shield Edge

By hitting a shield with his ring; it then caused it to shake creating a counter vibration from when the ring had been struck, thus creating frequency-control vibratory waves that were then fed into the blade. [2]


  1. Volume 1, Chapter 5
  2. Volume 13, Chapter 6

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.