Maiko Yamase

A young woman with minor role in Shingetsutan Tsukihime, and the lead role in the Kagetsu Tohya side story Daybreak.

A young woman who lives with her parents and younger sister Akemi in Misaki city, whose only appearance in Tsukihime was during the fight scene between Nrvnqsr Chaos, Tohno Shiki, and Arcueid Brunestud. During this short appearance, Yamase was eaten alive by the injured Nrvnqsr. It was her death which helped motivate Shiki to victory.

In Daybreak (alternatively translated as Dawn), Maiko reawakens inside the body of the dead Nrvnqsr several months after her death, which regenerated itself from the fragments used by Arcueid to heal Shiki's injuries. After encountering Ciel and Arcueid, and bidding her sister goodbye and a happy birthday, Yamase is killed by Shiki in much the same manner as the original Nrvnqsr. Her final act is to rescue her sister from the chaotic lives that make up her body, even as Shiki delivers the death blow.

Maiko appears to be a case of an inherited Reality Marble, acquiring the Lair of the Beast King. This could be due to her still being alive when Nrvnqsr was killed, it could be due to her being the most recent will included in the body with enough strength to control it, or it could be that she received a Miracle from the Counter Force in response to her desire to wish her sister happy birthday, which would make her a Counter Guardian. She exhibits an exceptional degree of control over the body of Nrvnqsr Chaos, including the ability to subconsciously take on the appearance of Tohno Shiki due to prolonged contact with him, the ability to restrain the six hundred sixty six chaotic lives, and the ability to move about in daylight. She is also a black belt in an undisclosed form of Karate, which may or may not help to explain her exceptional self control.