Ogre-Sword Guillotine

Ogre-Sword Guillotine (断頭鬼刃) is an art used by Shion.

Effects
The user coats their blade with aura, increasing its size and sharpness, before leaping upward, then slamming the weapon downward.

Trivia

 * In That Time I Got Reincarnated as a Slime: Isekai Memories, the "Shion [Steel Annihilator]" unit uses this as a Secret Skill.