In Act 12, Sailor Venus kills Queen Beryl with the sword once again. After this, strange writing appeared on the sword which only Sailor Venus could read. This happened to be the method to seal away Queen Metaria. However, out of confusion, Sailor Moon killed Tuxedo Mask(whose body was taken over by Queen Metaria) and then killed herself. However, this didn't really kill them and only freed Queen Metaria from Tuxedo Mask's body.