[He takes a moment to absorb this information, as it's quite different from any vampire lore he's heard before.] You were born as a vampire, lost your memories at the age of five as a result of becoming a human, and then... you regained your memories by having this spell broken and becoming a vampire once more?
[The last part is guesswork, of course. Vampires in Yuuki's universe are clearly more complicated than most.]