Shrew

Shrew is a character from Pathologic: The Marble Nest.

Pathologic: The Marble Nest
During the events of The Marble Nest, Bachelor finds Shrew, Sleepy Head, and Sticky gathered near the Silent House. If the Bachelor forgoes Sticky's insistence that he not trade any nuts to Shrew, he can exchange several nuts for Shrew's lockpicks, which allows him to discover the carriers behind a locked door in the house.

Sticky reveals that Shrew needs nuts so that she can collect the Bachelor's soul into one when he dies. At the end of The Marble Nest, Shrew indicates that she, alongside Sticky and Sleepy Head, are at Bachelor's sickbed, watching over him as he endlessly dreams.