Akechi's side effects at least start to subside after the due date for the Sentencing. He may even think that he got away with it.

Until the 15th, when the event starts.

He wakes up that day with no knowledge of why the crime on his parchment is what it is. He remembers some of his life back home, but any negative memories that relate to his crime he finds curiously... gone. This will be in effect for the duration of the event, until the aftermath post is posted on the 25th.