Negima! Episode 23 English Dubbed Episode Title:Memento mori.Episode Description:Asuna starts to recall her past, seeing flames in her dreams, and remembering the 10 year contract with the devil. Noticing how sad she felt (and without knowing about her past) Negi decided to ask the rest of his class to help him throw a surprise birthday party for Asuna. Unfortunately, tragedy would befall Class 2-A.