"Time is a thief for humans," Kumafuwafuwa said. "It steals your strength, steals your memories. Mareo is old, and time has stolen much from him. There are days where he is the brilliant and funny friend that I met over sixty years ago. There are days when he is...not. When he doesn't know me, and seeks to make contract once again. This morning was a good day, but it can turn without warning. When it does, he will be confused and afraid."
Revulsion flushed through Hazō's body, followed instantly by shame and guilt. It was instinctive, an animal's desire to back away from a sick fellow lest the problem be catching, lest Hagino's incapacity infect Hazō himself. Rationally, he knew that wasn't how it worked. 'Wandering wits' they called it, and it happened to many people. It was a natural part of aging, much like the loss of weight, loss of strength, the sagging of skin and the spreading of liver spots. That made it no less disturbing.