Yahan (夜半, Sekirei #57), is an exclusive character from the PS2 title, Sekirei: Gifts From the Future. With her Ashikabi, Koya Reiji, she serves as one of the two main antagonists featured in the game. Her name is a literal translation of "midnight".
With her light attire and sleek build, Yahan's fighting technique revolves around stealth and strategic use of her surroundings (not unlike an assassin). Using the shadows, she can teleport to any location and perform surprise attacks. However, her prowess in unarmed combat is average among Sekirei. To make up for this drawback, Yahan is equiped with a curved dagger, which she wields in conjunction with her teleportation abilities. By the use of both power and weaponry, Yahan can easily overpower and confuse enemies.