Arc

The Type 6 HF-016 Katana, named Raiden, is Hayato Kasai's secondary melee weapon in End War Online.

Design
Raiden takes the appearance of a straight, single-edged Japanese Katana. What gives the blade its supreme cutting power is the high frequency oscillations of the blade through use of high frequency electric pulses through the blade to give it the power to cut straight through most materials. Overall, the blade bears a much similar design to the HF Longswords of the Metal Gear Rising game, albeit with a red-colored blade that channels red electricity, which also enhances its cutting power

Unlike most high frequency blades, Raiden has a specialized mechanism in the blade that utilizes a specialized system that allows him to launch his strikes towards a long range. This is achieved through use of extensive electrical currents that are charged using large amounts of electrical energy, precisely packed into one, single slash. With each slash Hayato makes, more kinetic energy is channeled into the blade. The more slashes made, the more energy create. Attacks that hit enemies charge more energy into the Raiden blade, which then allows for more slashes to be launched. Theoretically, Hayato can launch an infinite amount of long-range slashes, as the long-range slashes also generate kinetic energy, but not as much as any other attack.

Trivia

 * Raiden is based on the high frequency blades used in the Metal Gear series.
 * Its name is also a reference to the Metal Gear series, as the character Raiden is a cyborg ninja who's primary weapon is an HF Blade.