Ultra-Seven

Ultra-Seven is Mukuro Sayama's pair of twin High Frequency Blades in End War Online.

Design
Ultra-Seven is a very simplistic high frequency blade in the form of a Katana. It's simple and straightforward, featuring a polished silver blade and an angular pattern on the hilt. It lacks a Tsuba guard and any form of decoration, even forgoing the traditional Sageo hilt wrappings. The sheaths are equally plain, though they have a biometric locking mechanism that keeps the swords sheathed until Mukuro taps the button to unlock it. Its HF oscillations have been uniquely tuned for even higher resonance, and the swords have been properly reinforced to withstand these enhanced frequencies.

Trivia

 * These weapons are named after Ultra Seven, and are inspired by the swords used by the corresponding Ultraman suit found in the Manga/Anime adaptation.
 * Mukuro worked with an in-game engineer to add the High Frequency modifications after researching how to forge the swords herself.